CN203717974U - Bellows isolation ammonia stop valve - Google Patents
Bellows isolation ammonia stop valve Download PDFInfo
- Publication number
- CN203717974U CN203717974U CN201420023049.4U CN201420023049U CN203717974U CN 203717974 U CN203717974 U CN 203717974U CN 201420023049 U CN201420023049 U CN 201420023049U CN 203717974 U CN203717974 U CN 203717974U
- Authority
- CN
- China
- Prior art keywords
- valve
- bellows
- valve rod
- flap
- spring
- 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 - Fee Related
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 22
- 238000002955 isolation Methods 0.000 title claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 210000004907 gland Anatomy 0.000 claims description 20
- 239000004484 Briquette Substances 0.000 claims description 7
- 238000009987 spinning Methods 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 101100441413 Caenorhabditis elegans cup-15 gene Proteins 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010036 direct spinning Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model relates to a bellows isolation ammonia stop valve which comprises a valve body, a valve rod, a valve cover, a valve clack, a bellows and a hand wheel. A spring rotating press filler bin is arranged on the upper portion of the valve cover, multistage sealing filler is arranged on the lower portion of the spring rotating press filler bin, a pressing nut which is in threaded connection with an inner wall of the valve cover and sleeves the valve rod is arranged on the upper portion of the spring rotating press filler bin, a locking nut is arranged on the outer side of the part of the pressing nut penetrating out of the valve cover and is located above the valve cover, a spring module is installed between the pressing nut and the valve rod in a sleeved mode, the outer side of the part of the valve clack sleeving the valve rod is sleeved with a guide drum, an outer turned edge of the upper end of the guide drum is installed between a sealing pressing block and the valve body, the lower end drum part of the guide drum extends into the valve body, the bellows is arranged on the outer side of the drum body part of the guide drum, the upper end of the bellows is fixedly connected with the guide drum, and the lower end of the bellows is fixedly connected with the valve clack. The bellows isolation ammonia stop valve improves sealing performance, is free of external leakage and prolongs service life.
Description
Technical field
The utility model relates to a kind of stop valve, particularly a kind of bellows isolation ammonia stop valve.
Background technique
Bellows stop valve, conventionally referred to as membrane valve, can be used for controlling flowing of all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.When need to use bellows stop valve Electric Actuated Stop Valves in horizontal pipe, it is a kind of more novel stop valve classification, it has some exclusive superiority of self structure, if switch is without friction, seals not easy to wear, keying moment is little, can reduce like this specification of joined final controlling element.
On ammonia system pipeline, some normally open valves are due to frequent switch, can cause valve rod and filler wearing and tearing, can cause leakage after of long duration, initiation potential, ammoniacal liquor is poisonous medium, corrodible most metals, so in the body cavity of normally open valve, can there is certain corrosion, cause a series of quality problems.
Summary of the invention
The utility model, in order to overcome prior art defect and deficiency, provides a kind of bellows isolation ammonia stop valve.
The technical solution of the utility model is: a kind of bellows isolation ammonia stop valve, comprise valve body, valve rod, valve gap, flap, bellows and handwheel, described valve gap is located on valve body, described valve rod is applied in valve gap and extends in valve body, valve rod top is connected with handwheel, its bottom is connected with flap, described valve gap and valve body joint are provided with sealed briquette, described valve gap top is provided with spring spinning filling container, the bottom of described spring spinning filling container is provided with multi-stage sealed filler, and its top is provided with the gland nut on valve rod that is sleeved on being connected with valve gap inner thread; The outside that described gland nut passes the part of valve gap is provided with locking nut, and this locking nut is positioned at the top of valve gap, between gland nut and valve rod, is set with spring assembly; The outside of described flap suit valve stem part is set with guide cylinder, the flanging sealing of guide cylinder upper end is arranged between sealed briquette and valve body, its lower end shell portion extends in valve body, the shell portion outside of described guide cylinder is provided with bellows, the upper end of described bellows is fixedly connected with guide cylinder, and its lower end is fixedly connected with flap.
Described spring assembly contains holddown spring and is arranged on respectively the upper and lower spring seat of holddown spring upper and lower end, and the end face of described upper spring seat is positioned on gland nut, and the bottom surface of lower spring cup is positioned in stuffing box packing.
On the inside and outside wall of described gland nut, be respectively equipped with an annular groove, in described annular groove, be separately installed with inside and outside O RunddichtringO.
Between described valve rod lower end and flap, be also provided with cushion block.
Described valve rod lower end and flap suit part are provided with slot type rotation-preventing mechanism.
Described slot type rotation-preventing mechanism contains expansion controlling ring-shaped insert and anti-rotation sleeve, and described rotating prevention sleeve jacket casing is contained on valve rod, and its outer wall is threaded with flap upper inside wall; Described expansion controlling ring-shaped insert is arranged in the groove of valve rod lower end, and its upper-end surface is connected with anti-rotation sleeve bottom surface.
The beneficial effects of the utility model are:
1, on the valve gap of the utility model bellows isolation ammonia with stop valve, design a spring spinning filling container, by spring and the direct spinning of spring seat on filler, press gland nut, on gland nut, be designed with inside and outside two O type ring recess, improve sealing sealability;
2, the utility model bellows isolation ammonia is multi-sealed with the O type circle sealing on the sealing of bellows spacer medium, packing seal and the gland nut of stop valve etc., can allow the utility model ammonia safer with stop valve, guarantee that valve does not have external leakage, extend valve working life;
3, the utility model bellows isolation ammonia adopts slot type rotation-preventing mechanism with the flap of stop valve, improves the flexibility of valve.
Accompanying drawing explanation
Fig. 1 is the structural representation of stop valve for the utility model bellows isolation ammonia;
Fig. 2 is the structural representation of the slot type rotation-preventing mechanism of stop valve for the utility model bellows isolation ammonia;
Fig. 3 is the structural representation of the gland nut of stop valve for the utility model bellows isolation ammonia.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail:
Embodiment: referring to Fig. 1, Fig. 2 and Fig. 3, wherein, number in the figure: 1, valve body, 2, flap, 3, cushion block, 4, bellows, 5, sealed briquette, 6, valve gap, 7, valve rod, 8, stuffing box packing, 9, gland nut, 10, locking nut, 11, handwheel, 12, guide cylinder, 13, upper spring seat, 14, holddown spring, 15, lower spring cup, 16, expansion controlling ring-shaped insert, 17, anti-rotation sleeve, 18, outer O RunddichtringO, 19, interior O RunddichtringO.
A kind of bellows isolation ammonia stop valve, comprise valve body 1, valve rod 7, valve gap 6, flap 2, bellows 4 and handwheel 11, described valve gap 6 is located on valve body 1, described valve rod 7 is applied in valve gap 6 and extends in valve body 1, valve rod 7 tops are connected with handwheel 11, its bottom is connected with flap 2, described valve gap 6 and valve body 1 joint are provided with sealed briquette 5, described valve gap 6 tops are provided with spring spinning filling container, the bottom of described spring spinning filling container is provided with multi-stage sealed filler 8, and its top is provided with the gland nut 9 on valve rod 7 that is sleeved on being connected with valve gap 6 inner threads; The outside that described gland nut 9 passes the part of valve gap 6 is provided with locking nut 10, and this locking nut 10 is positioned at the top of valve gap 6, between gland nut 9 and valve rod 7, is set with spring assembly; The outside of described flap 2 suit valve rod 7 parts is set with guide cylinder 12, the flanging sealing of guide cylinder 12 upper ends is arranged between sealed briquette 5 and valve body 1, its lower end shell portion extends in valve body 1, the shell portion outside of described guide cylinder 12 is provided with bellows 4, the upper end of described bellows 4 is fixedly connected with guide cylinder 12, and its lower end is fixedly connected with flap 2.
Described spring assembly contains holddown spring 14 and is arranged on respectively the upper and lower spring seat 13,15 of holddown spring 14 upper and lower ends, and the end face of described upper spring seat 13 is positioned on gland nut 9, and the bottom surface of lower spring cup 15 is positioned in stuffing box packing 7.
On the inside and outside wall of described gland nut 9, be respectively equipped with an annular groove, in described annular groove, be separately installed with inside and outside O RunddichtringO 19,18.
Between described valve rod 7 lower ends and flap 2, be also provided with cushion block 3.
Described valve rod 7 lower ends and flap 2 suit parts are provided with slot type rotation-preventing mechanism.
Described slot type rotation-preventing mechanism contains expansion controlling ring-shaped insert 16 and anti-rotation sleeve 17, and described anti-rotation sleeve 17 is sleeved on valve rod 7, and its outer wall is threaded with flap 2 upper inside wall; Described expansion controlling ring-shaped insert 16 is arranged in the groove of valve rod 7 lower ends, and its upper-end surface is connected with anti-rotation sleeve 17 bottom surfaces.
Above embodiment is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improve, within all should being included in protection domain of the present utility model.
Claims (6)
1. a bellows is isolated ammonia stop valve, comprise valve body, valve rod, valve gap, flap, bellows and handwheel, described valve gap is located on valve body, described valve rod is applied in valve gap and extends in valve body, valve rod top is connected with handwheel, its bottom is connected with flap, it is characterized in that: described valve gap and valve body joint are provided with sealed briquette, described valve gap top is provided with spring spinning filling container, the bottom of described spring spinning filling container is provided with multi-stage sealed filler, and its top is provided with the gland nut on valve rod that is sleeved on being connected with valve gap inner thread; The outside that described gland nut passes the part of valve gap is provided with locking nut, and this locking nut is positioned at the top of valve gap, between gland nut and valve rod, is set with spring assembly; The outside of described flap suit valve stem part is set with guide cylinder, the flanging sealing of guide cylinder upper end is arranged between sealed briquette and valve body, its lower end shell portion extends in valve body, the shell portion outside of described guide cylinder is provided with bellows, the upper end of described bellows is fixedly connected with guide cylinder, and its lower end is fixedly connected with flap.
2. bellows according to claim 1 is isolated ammonia stop valve, it is characterized in that: described spring assembly contains holddown spring and is arranged on respectively the upper and lower spring seat of holddown spring upper and lower end, the end face of described upper spring seat is positioned on gland nut, and the bottom surface of lower spring cup is positioned in stuffing box packing.
3. bellows isolation ammonia stop valve according to claim 1 and 2, is characterized in that: on the inside and outside wall of described gland nut, be respectively equipped with an annular groove, be separately installed with inside and outside O RunddichtringO in described annular groove.
4. bellows isolation ammonia stop valve according to claim 1, is characterized in that: between described valve rod lower end and flap, be also provided with cushion block.
5. bellows isolation ammonia stop valve according to claim 1, is characterized in that: described valve rod lower end and flap suit part are provided with slot type rotation-preventing mechanism.
6. bellows isolation ammonia stop valve according to claim 5, is characterized in that: described slot type rotation-preventing mechanism contains expansion controlling ring-shaped insert and anti-rotation sleeve, and described rotating prevention sleeve jacket casing is contained on valve rod, and its outer wall is threaded with flap upper inside wall; Described expansion controlling ring-shaped insert is arranged in the groove of valve rod lower end, and its upper-end surface is connected with anti-rotation sleeve bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420023049.4U CN203717974U (en) | 2014-01-15 | 2014-01-15 | Bellows isolation ammonia stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420023049.4U CN203717974U (en) | 2014-01-15 | 2014-01-15 | Bellows isolation ammonia stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717974U true CN203717974U (en) | 2014-07-16 |
Family
ID=51157125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420023049.4U Expired - Fee Related CN203717974U (en) | 2014-01-15 | 2014-01-15 | Bellows isolation ammonia stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717974U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134971A (en) * | 2015-09-28 | 2015-12-09 | 苏州洛特兰新材料科技有限公司 | Check valve for ammonia |
-
2014
- 2014-01-15 CN CN201420023049.4U patent/CN203717974U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134971A (en) * | 2015-09-28 | 2015-12-09 | 苏州洛特兰新材料科技有限公司 | Check valve for ammonia |
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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: 20140716 Termination date: 20150115 |
|
| EXPY | Termination of patent right or utility model |