CN205745618U - A kind of gate valve of detachable stuffing-box - Google Patents
A kind of gate valve of detachable stuffing-box Download PDFInfo
- Publication number
- CN205745618U CN205745618U CN201620390615.4U CN201620390615U CN205745618U CN 205745618 U CN205745618 U CN 205745618U CN 201620390615 U CN201620390615 U CN 201620390615U CN 205745618 U CN205745618 U CN 205745618U
- Authority
- CN
- China
- Prior art keywords
- valve
- box
- stuffing
- filler
- valve rod
- 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.)
- Active
Links
- 239000000945 filler Substances 0.000 claims abstract description 26
- 125000006850 spacer group Chemical group 0.000 claims abstract description 6
- 210000004907 gland Anatomy 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 8
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000012856 packing Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Abstract
A kind of gate valve of detachable stuffing-box, including valve body, valve gap, valve rod, stuffing-box and hands wheel, valve gap is fastened with valve body by studs, valve plate it is provided with in valve body, interlock concavo-convex with valve plate top of valve rod lower end is connected, stuffing-box is positioned between valve gap top and valve rod, pad is placed with valve gap contact position bottom stuffing-box, on the outside of stuffing-box and valve gap contact surface, two O are set, the position placing filler between the inner side of stuffing-box and valve rod arranges spacer ring, by hanging bolt, pressing plate is connected with the fixture being welded on valve gap above stuffing-box, the lower section of the filler upper platen around valve rod is lined with pressure ring, pressing plate is connected above support, support supports handwheel.This utility model avoids the maintenance that conventional filler letter is brought and the difficulty changing filler with valve gap one, stuffing-box can be dismantled, it is easy to maintenance, pressing plate, pressure ring and spacer ring is set simultaneously and makes stuffing-box be affected by pressure medium when fluctuating, it is achieved the function of self-tightening of stuffing-box.
Description
Technical field
This utility model belongs to valve field, particularly relates to the gate valve of a kind of detachable stuffing-box.
Background technology
Packing box seal, blocks can be used for back and forth or the contact movable sealing of rotary motion of leakage path by filler,
Soft packing seal and hard packing is mainly had to seal two classes.Can be used for reciprocal or rotating of leakage path is blocked by filler
The contact movable sealing of motion, mainly has soft packing seal and hard packing to seal two classes.Soft packing seal is also known as dish
Root seals, and the radially swelling by the responsive to axial force of gland of the filler in stuffing-box, to reach sealing purpose.Soft
Filler is often by fiber (asbestos, nylon etc.), lubricant (graphite, molybdenum bisuphide, Pulvis Talci etc.) and various
Tinsel reinforcing agent forms.Can be compensated by by tighting a bolt after filler abrasion.Wadding seal structure is simple,
Reliably, easily maintenance, corrosion-resistant and high temperature resistant, be once widely used as rotary shaft and reciprocating rod member sealed, but
Contact area, frictional resistance, power consumption and abrasion are the biggest, and in valve runs, leakage occurs in stuffing-box, and
When compression gland is the most inoperative, need to change or add filler, the most impossible, because traditional fills out
Material letter heap is welded on valve body body or is arranged on upper seal support, when replacing filler or stuffing-box need repairing, needs
Valve body to be unloaded, operates cumbersome, though hand stop valve can be changed under fully closed or full-gear or add sometimes
Filled, but must assure that when standard-sized sheet or fully closed the basic No leakage of stuffing-box, medium is from stuffing-box
After leakage, not only cause the loss of material and the energy, the most also pollute environment.
Summary of the invention
This utility model provides a kind of gate valve being easy to keep in repair detachable stuffing-box for solving the problems referred to above.
Technical solution adopted in the utility model:
The gate valve of a kind of detachable stuffing-box, including valve body, valve gap, valve rod, stuffing-box and handwheel, valve gap
Being fastened with valve body by studs, be provided with valve plate in valve body, valve rod lower end is concavo-convex with valve plate top to interlock
Connecing, stuffing-box is positioned between valve gap top and valve rod, places pad with valve gap contact position, fill out bottom stuffing-box
The outside of material letter arranges two O on valve gap contact surface, places filler between the inner side of stuffing-box and valve rod
Position spacer ring is set, above stuffing-box by hanging bolt by pressing plate and the fixture that is welded on valve gap even
Connecing, the lower section of the filler upper platen around valve rod is lined with pressure ring, and pressing plate is connected above support, and support supports
Handwheel.
Described stuffing-box lower end and valve stem contacts position arrange upper sealing device.
Described valve rod upper end is connected locking by valve stem nut and locking nut with handwheel.
Described valve stem nut overcoat gland nut, between gland nut lower end and valve stem nut and valve stem nut lower end
And bearing is set between support.
On described support, the position corresponding to bearing in gland nut lower end arranges lubricating cup.
Described valve body and valve plate contact position are provided with valve seat.
The beneficial effects of the utility model: this utility model avoids the dimension that conventional filler letter is brought with valve gap one
Repairing and change the difficulty of filler, stuffing-box can be dismantled, it is simple to maintenance, and is not fixed on valve body, sets simultaneously
Putting pressing plate, pressure ring and spacer ring makes stuffing-box be affected when fluctuating by pressure medium, it is achieved the self-tightening of stuffing-box
Function.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is this utility model partial enlargement structural representation at stuffing-box.
Wherein: 1-valve body；2-valve seat；3-valve plate；4-valve rod；5-studs；6-valve gap；7-pad；8-
Stuffing-box；9-O type circle；10-spacer ring；11-filler；12-pressure ring；13-pressing plate；14-hanging bolt；15-props up
Frame；16-valve stem nut；17-bearing；18-lubricating cup；19-gland nut；20-handwheel；21-locking nut；22-
Fixture；23-upper sealing device.
Detailed description of the invention
The gate valve of a kind of detachable stuffing-box, including valve body 1, valve gap 6, valve rod 4, stuffing-box 8 and hands
Wheel 20, valve gap 6 is fastened with valve body 1 by studs 5, is provided with valve plate 3, valve rod 4 in valve body 1
Lower end is connected with concavo-convex the interlocking in valve plate 3 top, and stuffing-box 8 is positioned between valve gap 6 top and valve rod 4, at filler
Place pad 7 bottom letter 8 with valve gap 6 contact position, the outside of stuffing-box 8 and valve gap 6 contact surface are arranged
Two O 9, the position placing filler 11 between the inner side of stuffing-box 8 and valve rod 4 arranges spacer ring 10,
By hanging bolt 14, pressing plate 13 is connected with the fixture 22 being welded on valve gap 6 above stuffing-box 8,
The lower section of filler 11 upper platen 13 around valve rod 4 is lined with pressure ring 12, and pressing plate 13 is connected above support 15,
Support 15 supports handwheel 20.
Described stuffing-box 8 lower end and valve rod 4 contact position arrange upper sealing device 23.
Described valve rod 4 upper end is connected locking by valve stem nut 16 and locking nut 21 with handwheel 20.
Described valve stem nut 16 overcoat gland nut 19, between gland nut 19 lower end and valve stem nut 16 and
Bearing 17 is set between valve stem nut 16 lower end and support 15.
On described support 15, the position corresponding to bearing 17 in gland nut 19 lower end arranges lubricating cup 18.
Described valve body 1 is provided with valve seat 2 with valve plate 3 contact position.
During application, after filler 11 weares and teares, stuffing-box 8, by pressure medium effect, floats up, with filler
Extrude filler 11 under the pressing plate 13 on letter top and pressure ring 12 mating reaction, again play sealing function, filler
Letter 8 completes function of self-tightening.
Above an embodiment of the present utility model is described in detail, but described content has been only this practicality newly
The preferred embodiment of type, it is impossible to be considered for limiting practical range of the present utility model.All according to this utility model
Impartial change that application range is made and improvement etc., all should still belong to patent covering scope of the present utility model it
In.
Claims (6)
1. the gate valve of a detachable stuffing-box, it is characterised in that include valve body (1), valve gap (6), valve
Bar (4), stuffing-box (8) and handwheel (20), valve gap (6) is by studs (5) and valve body (1)
Fastening, is provided with valve plate (3) in valve body (1), valve rod (4) lower end is concavo-convex with valve plate (3) top to interlock
Connecting, stuffing-box (8) is positioned between valve gap (6) top and valve rod (4), at stuffing-box (8) bottom and valve
Lid (6) contact position places pad (7), and the outside of stuffing-box (8) and valve gap (6) contact surface are arranged
Two O (9), place the position of filler (11) between the inner side of stuffing-box (8) and valve rod (4)
Spacer ring (10) is set, stuffing-box (8) top by hanging bolt (14) by pressing plate (13) be welded on valve
Fixture (22) on lid (6) connects, valve rod (4) filler (11) upper platen (13) around
Lower section is lined with pressure ring (12), and pressing plate (13) is connected above support (15), and support (15) supports handwheel (20).
The gate valve of detachable stuffing-box the most according to claim 1, it is characterised in that described filler
Letter (8) lower end and valve rod (4) contact position arrange upper sealing device (23).
The gate valve of detachable stuffing-box the most according to claim 1, it is characterised in that described valve rod
(4) upper end is connected locking by valve stem nut (16) and locking nut (21) with handwheel (20).
The gate valve of detachable stuffing-box the most according to claim 3, it is characterised in that described valve rod
Nut (16) overcoat gland nut (19), between gland nut (19) lower end and valve stem nut (16) and valve
Bearing (17) is set between stem nut (16) lower end and support (15).
The gate valve of detachable stuffing-box the most according to claim 4, it is characterised in that described support
(15) on, lubricating cup (18) is set in the position corresponding to the bearing (17) of gland nut (19) lower end.
The gate valve of the most detachable stuffing-box, it is characterised in that described
Valve body (1) and valve plate (3) contact position are provided with valve seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620390615.4U CN205745618U (en) | 2016-04-29 | 2016-04-29 | A kind of gate valve of detachable stuffing-box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620390615.4U CN205745618U (en) | 2016-04-29 | 2016-04-29 | A kind of gate valve of detachable stuffing-box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205745618U true CN205745618U (en) | 2016-11-30 |
Family
ID=57373102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620390615.4U Active CN205745618U (en) | 2016-04-29 | 2016-04-29 | A kind of gate valve of detachable stuffing-box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205745618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159780A (en) * | 2019-05-20 | 2019-08-23 | 江苏中海华核环保有限公司 | A kind of nuclear power special high-pressure isolating valve |
-
2016
- 2016-04-29 CN CN201620390615.4U patent/CN205745618U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159780A (en) * | 2019-05-20 | 2019-08-23 | 江苏中海华核环保有限公司 | A kind of nuclear power special high-pressure isolating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 169 Hangkong Road, Free Trade Zone (Airport Economic Zone), Dongli District, Tianjin, 300308 Patentee after: Tianjin Zhongtian Nuclear Technology Industry Co.,Ltd. Country or region after: China Address before: No. 169 Hangkong Road, Free Trade Zone (Airport Economic Zone), Dongli District, Tianjin, 300308 Patentee before: TIANJIN ZHONGHE SCIENCE & TECHNOLOGY INDUSTRIAL CO.,LTD. Country or region before: China |
|
| CP03 | Change of name, title or address |