CN202901316U - Anti-high-temperature and anti-high-pressure and low-torsion high-performance disc valve - Google Patents
Anti-high-temperature and anti-high-pressure and low-torsion high-performance disc valve Download PDFInfo
- Publication number
- CN202901316U CN202901316U CN 201220471158 CN201220471158U CN202901316U CN 202901316 U CN202901316 U CN 202901316U CN 201220471158 CN201220471158 CN 201220471158 CN 201220471158 U CN201220471158 U CN 201220471158U CN 202901316 U CN202901316 U CN 202901316U
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Abstract
The utility model relates to an anti-high-temperature, anti-high-pressure and low-torsion high-performance disc valve which comprises an upper shaft sleeve and a lower shaft sleeve. The upper shaft sleeve and the lower shaft sleeve are respectively arranged in a middle hole of a valve body. A valve rod penetrates through an upper shaft sleeve, a valve plate and the lower shaft sleeve and is arranged in the middle hole of the valve body. A taper pin is arranged in the valve plate and a taper pin hole of the valve rod. A lower thrust bearing is clamped into a thrust groove of the tail portion of the valve rod and matched with a thrust step of the tail portion of the valve body and used for achieving concentric positioning of the valve rod, the valve plate and the valve body. A lower sealing ring is arranged in the step hole of the tail portion of the valve body, and protrudes by 0.4mm-0.5mm of the tail portion of the valve body. The lower end cover is arranged on the tail portion of the valve body by a bolt of a lower end cover. A sealing ring of the valve rod penetrates through the valve rod and is arranged in the step hole of the middle hole of the valve body. A sealing pressing ring penetrates through the valve rod and is arranged in the step hole of the valve body, and an upper sealing pressing cover penetrates through the valve rod and is fixed on the valve body by an adjusting bolt. An upper thrust bearing is clamped into the thrust groove of the valve rod and matched with a step of the sealing pressing ring. A valve seat and a valve cover are fixed on the valve body by a bolt of a valve cover.
Description
Technical field
The utility model relates to a kind of high-performance butterfly valve, relates in particular to the valve mechanism of this high-performance butterfly valve.
Background technique
The high-performance butterfly valve also is called double eccentric butterfly valve, mainly is applicable to the System drainages such as water factory, power plant, steel mill's smelting, chemical industry, water source spring engineering, environmental facility construction and uses; Be particularly useful on the water channel pipeline, as regulating and the equipment use of damming.Compare with centre-pivoted butterfly valve, double eccentric butterfly valve is more high pressure resistant, and the life-span is longer, good stability; And compare with other valve, the larger material of bore is lighter, and cost is just lower.But because butterfly plate is arranged in the middle of the double eccentric butterfly valve, and be used for high pressure, its fluid resistance is greater than centre-pivoted butterfly valve and other multi-fork valve door.
Shown in Figure 1A, Figure 1B: the chief component of the high-performance butterfly valve of prior art: tail-hood bolt 1, tail-hood 2, lower seal pad 3, thrust bearing 4, Lower shaft sleeve 5, valve body 6, valve seat 7, valve gap 8, valve plate 9, taper pin 10, Upper shaft sleeve 11, valve rod 12, valve stem packing ring 13, seal joint 14, upper end cap 15, adjusting bolt 16 and support 17.
But there is following problem in said structure:
The first, what be connected use with driving mechanism is support, is not integral structure, has increased the entire length of valve, and rack making needs mould to realize, has increased the valve holistic cost; Upper end cap plays regulates the effect that the compression valve rod seal ring increases upper sealing force, because support being arranged, regulates upper end cap when upper the leakage appears in valve cumbersome.
The second, when valve was opened at forward, especially valve plate broke away from valve seat during moment; can be because pipe ends pressure reduction be large, medium can concentrate valve plate and valve seat to break away from the zone, and this regional flow velocity is very high; valve seat is in the situation that not protection easily causes valve seat to be pulled by moment.
The 3rd, valve seat is by extrusion modling, and size is difficult to control, especially when temperature influence, can produce distortion.In order to eliminate the leakage that causes of distortion, can only increase the magnitude of interference between valve seat and the valve plate, but this can cause the high and component of valve opening and closing moment of torsion can not interchange issues.
Summary of the invention
The utility model technical issues that need to address have provided a kind of high temperature resistant, high pressure resistant, low moment of torsion high-performance butterfly valve, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: Upper shaft sleeve and Lower shaft sleeve; Described Upper shaft sleeve and Lower shaft sleeve are respectively charged in the valve body mesopore; Valve rod passes Upper shaft sleeve, valve plate and Lower shaft sleeve and packs in the valve body mesopore; Taper pin is squeezed in the taper pin-hole of valve plate and valve rod; Lower thrust bearing snaps in the valve rod afterbody thrust groove and with valve body afterbody thrust step and cooperates, and is used for realizing valve rod, valve plate and valve body concentric locating; Lower seal is packed in the valve body afterbody step hole, and lower seal is protruded valve body tail plane 0.4mm-0.5mm; Lower end cap is contained in the valve body afterbody by the lower end cap bolt; Valve stem packing ring passes valve rod and packs in the valve body mesopore step hole; Seal joint passes valve rod packs in the valve body step hole, and upper sealing gland passes valve rod and is fixed on the valve body by adjusting bolt, the pretightening force by adjusting bolt make the valve stem packing ring compression and and valve rod generation interference fit, sealing effect in the realization; Upper thrust bearing snap in the thrust groove on the valve rod and and the cooperation of seal joint step; Valve seat and valve gap are bolted on the valve body by valve gap.
Compared with prior art, the beneficial effects of the utility model are: because valve body adopts the integral type casting, support is directly cast out, be need not other mounting bracket, also do not affect the adjusting of sealing; At groove of protecting valve seat of valve gap processing, because the medium high flow rate impacts when producing distortion, and the groove on the valve gap can limit the amount of deformation of valve seat, prevent effectively that valve from being pulled at keying moment valve seat when valve seat; Valve seat adopts whole numerical control machine-shaping, can guarantee that each valve seat size is identical, need not to consider because the distortion that temperature effect produces makes each parts all interchangeable.
Description of drawings
Figure 1A is prior art high-performance butterfly valve structure schematic diagram.
Figure 1B is the sectional view along the A-A line of Figure 1A.
Fig. 2 A is the utility model structural representation.
Fig. 2 B be Fig. 2 A along B-B line sectional view.
Fig. 2 C is the utility model exploded perspective view.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
By Fig. 2 A, Fig. 2 B, Fig. 2 C as seen: the utility model comprises: Upper shaft sleeve 29 and Lower shaft sleeve 22; Described Upper shaft sleeve 29 and Lower shaft sleeve 22 are respectively charged in valve body 28 mesopores; Valve rod 23 passes Upper shaft sleeve 29, valve plate 26 and Lower shaft sleeve 22 and packs in valve body 28 mesopores; Taper pin 27 is squeezed in the taper pin-hole of valve plate 26 and valve rod 23; Lower thrust bearing 21 snaps in the valve rod 23 afterbody thrust grooves and with valve body 28 afterbody thrust steps and cooperates, and is used for realizing valve rod 23, valve plate 26 and valve body 28 concentric locatings; Lower seal 20 is packed in the valve body afterbody step hole, and lower seal 20 is protruded valve bodies 28 tail plane 0.4mm-0.5mm; Lower end cap 19 is contained in valve body 28 afterbodys by lower end cap bolt 18; Valve stem packing ring 30 passes valve rod 23 and packs in the valve body 28 mesopore step holes; Seal joint 31 passes valve rod 23 and packs in valve body 28 step holes, upper sealing gland 33 passes valve rod and is fixed on the valve body 28 by adjusting bolt 34, pretightening force by adjusting bolt 34 makes valve stem packing ring 30 compressions also and valve rod 23 generation interference fit, sealing effect in the realization; Upper thrust bearing 32 snap in the thrust groove on the valve rod 23 and and the cooperation of seal joint 31 steps; Valve seat 25 and valve gap 24 are fixed on the valve body 28 by valve gap bolt 35.
In valve body 28 mesopores step is arranged in the utility model, can prevent that Upper shaft sleeve 29 and Lower shaft sleeve 22 from producing displacement; Valve rod 23 cylindricals are bright finishing, and Upper shaft sleeve 29 and Lower shaft sleeve 22 endoporus spraying PTFE have reduced the friction factor of valve rod 23 with Upper shaft sleeve 29 and Lower shaft sleeve 22; Taper pin 27 is squeezed in valve plate 26 and valve rod 23 taper pin-holes, prevents that gapped the generation become flexible between valve rod 23 and the valve plate 26; Valve rod 23 drives valve plate 26 rotations when being subject to the torsion that the outside applies, realize valve plate 26 switching motions; Lower seal 20 is protruded the 0.4mm-0.5mm compression of valve body 28 tail plane by the pretightening force of lower end cap bolt 18, produced seal pressure, realize the lower seal effect; Frequently open the upper seal leakage that produces valve stem packing ring 30 wearing and tearing and produce when valve, the pretightening force that only needs to increase adjusting bolt 35 gets final product; Upper thrust bearing 32 snap on the valve rod 23 in the thrust groove and and seal joint 31 steps cooperate, when valve rod 23 fractures produced top offset, upper thrust bearing 32 can limit upper valve rod 23 displacements, realized preventing flying out effect; Valve seat 25 has been eliminated because the distortion that extruding causes by numerical control machine-shaping; On valve gap 24 and valve seat 25 surface of contact water wave line that processes is arranged; Compression magnitude of interference 0.4mm is arranged between valve seat 25 and valve body 28 and the valve gap 24, form seal pressure, can prevent that medium from oozing out from valve gap 24; Process the groove of protection valve seat 25 at valve gap 24, in the time of can preventing that valve plate 26 from opening, occured because high flow rate valve seat 25 pulls phenomenon; Cast inblock goes out with operating device to be connected carriage on the valve body 28, need not to fill in addition support and can realize and being connected of operating device.
Claims (1)
1. one kind high temperature resistant, high pressure resistant, low moment of torsion high-performance butterfly valve is characterized in that comprising: Upper shaft sleeve and Lower shaft sleeve; Described Upper shaft sleeve and Lower shaft sleeve are respectively charged in the valve body mesopore; Valve rod passes Upper shaft sleeve, valve plate and Lower shaft sleeve and packs in the valve body mesopore; Taper pin is squeezed in the taper pin-hole of valve plate and valve rod; Lower thrust bearing snaps in the valve rod afterbody thrust groove and with valve body afterbody thrust step and cooperates, and is used for realizing valve rod, valve plate and valve body concentric locating; Lower seal is packed in the valve body afterbody step hole, and lower seal is protruded valve body tail plane 0.4mm-0.5mm; Lower end cap is contained in the valve body afterbody by the lower end cap bolt; Valve stem packing ring passes valve rod and packs in the valve body mesopore step hole; Seal joint passes valve rod packs in the valve body step hole, and upper sealing gland passes valve rod and is fixed on the valve body by adjusting bolt, the pretightening force by adjusting bolt make the valve stem packing ring compression and and valve rod generation interference fit, sealing effect in the realization; Upper thrust bearing snap in the thrust groove on the valve rod and and the cooperation of seal joint step; Valve seat and valve gap are bolted on the valve body by valve gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220471158 CN202901316U (en) | 2012-09-14 | 2012-09-14 | Anti-high-temperature and anti-high-pressure and low-torsion high-performance disc valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220471158 CN202901316U (en) | 2012-09-14 | 2012-09-14 | Anti-high-temperature and anti-high-pressure and low-torsion high-performance disc valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202901316U true CN202901316U (en) | 2013-04-24 |
Family
ID=48121987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220471158 Expired - Fee Related CN202901316U (en) | 2012-09-14 | 2012-09-14 | Anti-high-temperature and anti-high-pressure and low-torsion high-performance disc valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202901316U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883793A (en) * | 2014-03-23 | 2014-06-25 | 大连兆和科技发展有限公司 | High-temperature ventilating valve |
| CN104405898A (en) * | 2014-11-24 | 2015-03-11 | 河南煜达阀门制造有限公司 | Low-maintenance-rate triple-eccentric butterfly valve |
| CN104405909A (en) * | 2014-11-24 | 2015-03-11 | 河南煜达阀门制造有限公司 | Three-eccentric butterfly valve |
| CN104565404A (en) * | 2014-12-22 | 2015-04-29 | 中冶南方工程技术有限公司 | Non-driven automatic reset turning plate valve |
-
2012
- 2012-09-14 CN CN 201220471158 patent/CN202901316U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883793A (en) * | 2014-03-23 | 2014-06-25 | 大连兆和科技发展有限公司 | High-temperature ventilating valve |
| CN104405898A (en) * | 2014-11-24 | 2015-03-11 | 河南煜达阀门制造有限公司 | Low-maintenance-rate triple-eccentric butterfly valve |
| CN104405909A (en) * | 2014-11-24 | 2015-03-11 | 河南煜达阀门制造有限公司 | Three-eccentric butterfly valve |
| CN104565404A (en) * | 2014-12-22 | 2015-04-29 | 中冶南方工程技术有限公司 | Non-driven automatic reset turning plate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20170914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |