CN201973352U - Improved distance ring device - Google Patents
Improved distance ring device Download PDFInfo
- Publication number
- CN201973352U CN201973352U CN2011200255267U CN201120025526U CN201973352U CN 201973352 U CN201973352 U CN 201973352U CN 2011200255267 U CN2011200255267 U CN 2011200255267U CN 201120025526 U CN201120025526 U CN 201120025526U CN 201973352 U CN201973352 U CN 201973352U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- valve rod
- distance ring
- stuffing box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 239000000945 filler Substances 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 5
- 239000010439 graphite Substances 0.000 claims abstract description 5
- 125000006850 spacer group Chemical group 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 239000004519 grease Substances 0.000 abstract 2
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000012856 packing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model relates to the technical field of flat plate gate valves, in particular to an improved distance ring device. The improved distance ring device is characterized in that: an O-shaped ring radial sealing groove is formed in the inner cavity and the outer cavity of a distance ring; after being loaded with the O-shaped sealing rings, the sealing groove is matched with a valve rod and a stuffing box; the O-shaped sealing rings are sealed under pre-compression; one end of the valve rod is connected with a flashboard, and the other end is connected with an operation mechanism; the valve cap is fixedly connected with a valve body; and a sealing grease filling valve is arranged on the valve cap stuffing box. The improved distance ring device has the beneficial effects that: the four O-shaped rubber sealing rings prevent leakage caused by damage of sealing on the valve and prevent filler leakage because the valve rod moves up and down and then carries a part of flexible graphite, so sealing zero leakage in the true sense is realized. The structure of the distance ring is changed; the processability is improved; and the processing cost is reduced. Because a leaking hole is formed in the middle part of the distance ring, grease can be filled to assist for emergent sealing when a sealing component is abnormal and damaged.
Description
[technical field]
The utility model relates to the plate valve technical field, is a kind of modified model spacer ring device.
[background technique]
Existing spacer ring places in the valve gap stuffing box, compresses filler with the impacting force of Gland and plays seal action.When flashboard is partly opened, body cavity will bear high pressure, if adopt existing single metal spacer ring structure, and in the valve opening process, because the elevating movement of valve rod can be taken away a part of filler, thus the seal failure of stuffing box position, so that valve leak.In chemical enterprise, the packing seal fault is to cause the main cause of unplanned parking; 60% unplanned parking case is relevant with seal failure according to statistics.
[summary of the invention]
The purpose of this utility model is to overcome the deficiencies in the prior art, and the modified model spacer ring device of a kind of low cost of manufacture, good sealing effect is provided.
Design a kind of modified model spacer ring device for achieving the above object, comprise valve rod, valve gap, filler, O RunddichtringO, it is characterized in that exocoel is provided with O shape circle radial seal groove in the described spacer ring, described sealed groove is packed into behind the O-ring seals and valve rod, stuffing box cooperatively interact, the O RunddichtringO is subjected to precompression and seals, described valve rod one end is connected with flashboard, its the other end links to each other with operating device, described valve gap and valve body are fixedly connected, and described valve gap stuffing box is provided with the seal gease fill valve.
With the valve rod snug fit, outer and stuffing box snug fit is utilized the radial seal groove to make O-ring seals be subjected to precompression and is sealed in the described O-ring seals.
Described spacer ring middle part is provided with Leak hole.
Adopt filling-material structure between described valve rod and the valve gap stuffing box: seal with O ring+Expanded graphite sealing.
The beneficial effects of the utility model:
1. four rubber o-rings have stoped the damage that seals on the valve and the leakage that produces, and have stoped because of valve rod pumps to take away partially flexible graphite and cause packing leaking, make the sealing zero leakage of going up truly be achieved.
2. the structural change of spacer ring, and processibility improves, and cuts down finished cost.
3. the spacer ring middle part is provided with Leak hole, when Sealing is subjected to damaging unusually, but the auxiliary emergent sealing of greasing.
[description of drawings]
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a partial schematic diagram of the present utility model;
Fig. 3 is the partial schematic diagram of prior art;
Fig. 4 is a spacer ring schematic representation of the present utility model;
Fig. 5 is the spacer ring schematic representation of prior art
Appointment Fig. 1 is a Figure of abstract
In the accompanying drawing, 1 is support, and 2 is valve gap, and 3 is valve rod, and 4 is filler, and 5 is the O RunddichtringO, and 6 is spacer ring, and 7 is common spacer ring, and 8 is Spielpassung
[embodiment]
Further specify below below in conjunction with last figure the utility model being done:
Referring to Fig. 1-Fig. 5, spacer ring of the present utility model is exactly the inside and outside O-ring seals radial seal groove of processing on the standard spacer ring, described spacer ring places in the valve gap stuffing box, described O-ring seals places in the inside and outside radial seal groove of spacer ring, in and snug fit between the valve rod, snug fit between outer and the valve gap stuffing box is utilized the radial seal groove that O shape is enclosed to be subjected to precompression and is sealed, under the pressure medium effect, produce the self-tightening effect and strengthen sealing effect.Compare sealability with common spacer ring radical change is arranged, the interior exocoel of common spacer ring is not with addition of O type circle, so itself and valve rod are Spielpassung, still only play the effect that compresses stuffing box packing, adjustment packing seal power with stuffing box for Spielpassung, the sealed valve cap upper end causes the stuffing box position to be leaked fully.Described valve rod one end is connected with flashboard, and its other end links to each other with operating device, and described valve gap and valve body are fixedly connected.
The valve gap stuffing box is provided with the seal gease fill valve, when Sealing is subjected to damaging unusually, but the auxiliary emergent sealing of greasing.
Adopt filling-material structure between described valve rod and the valve gap stuffing box: the sealing of seal with O ring+Expanded graphite, form compound seal and make sealing tight more reliable, stop the medium phenomenon that leaks outside.And long service life, compact structure is simple, and is easy to maintenance, with low cost.
Claims (4)
1. modified model spacer ring device, comprise valve rod, valve gap, filler, O RunddichtringO, it is characterized in that exocoel is provided with O shape circle radial seal groove in the described spacer ring, described sealed groove is packed into behind the O-ring seals and valve rod, stuffing box cooperatively interact, the O RunddichtringO is subjected to precompression and seals, and described valve rod one end is connected with flashboard, and its other end links to each other with operating device, described valve gap and valve body are fixedly connected, and described valve gap stuffing box is provided with the seal gease fill valve.
2. a kind of modified model spacer ring device as claimed in claim 1 is characterized in that in the described O-ring seals and the valve rod snug fit, and outer and stuffing box snug fit is utilized the radial seal groove to make O-ring seals be subjected to precompression and sealed.
3. a kind of modified model spacer ring device as claimed in claim 1 is characterized in that described spacer ring middle part is provided with Leak hole.
4. a kind of modified model spacer ring device as claimed in claim 1 is characterized in that adopting between described valve rod and the valve gap stuffing box filling-material structure: seal with O ring and Expanded graphite sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200255267U CN201973352U (en) | 2011-01-26 | 2011-01-26 | Improved distance ring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200255267U CN201973352U (en) | 2011-01-26 | 2011-01-26 | Improved distance ring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201973352U true CN201973352U (en) | 2011-09-14 |
Family
ID=44578454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200255267U Expired - Lifetime CN201973352U (en) | 2011-01-26 | 2011-01-26 | Improved distance ring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201973352U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513970A (en) * | 2011-12-07 | 2012-06-27 | 天津鹏翎胶管股份有限公司 | Caulking ring assembly device and assembly method of rubber tube |
| CN102537650A (en) * | 2012-03-06 | 2012-07-04 | 上海电力修造总厂有限公司 | Main steam trap valve of detachable valve seat |
| CN104265993A (en) * | 2014-10-11 | 2015-01-07 | 苏州道森钻采设备股份有限公司 | Valve rod ladder pressure difference seal structure for ultrahigh pressure fracture brake valve |
| CN119508507A (en) * | 2024-11-14 | 2025-02-25 | 浙江中控流体技术有限公司 | Butterfly valve with anti-sticking, dust-proof and high temperature resistant external positioning guide structure |
-
2011
- 2011-01-26 CN CN2011200255267U patent/CN201973352U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513970A (en) * | 2011-12-07 | 2012-06-27 | 天津鹏翎胶管股份有限公司 | Caulking ring assembly device and assembly method of rubber tube |
| CN102537650A (en) * | 2012-03-06 | 2012-07-04 | 上海电力修造总厂有限公司 | Main steam trap valve of detachable valve seat |
| CN104265993A (en) * | 2014-10-11 | 2015-01-07 | 苏州道森钻采设备股份有限公司 | Valve rod ladder pressure difference seal structure for ultrahigh pressure fracture brake valve |
| CN119508507A (en) * | 2024-11-14 | 2025-02-25 | 浙江中控流体技术有限公司 | Butterfly valve with anti-sticking, dust-proof and high temperature resistant external positioning guide structure |
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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 |
Granted publication date: 20110914 |
|
| CX01 | Expiry of patent term |