CN106439057A - Shutoff valve for ammonia - Google Patents
Shutoff valve for ammonia Download PDFInfo
- Publication number
- CN106439057A CN106439057A CN201610963200.6A CN201610963200A CN106439057A CN 106439057 A CN106439057 A CN 106439057A CN 201610963200 A CN201610963200 A CN 201610963200A CN 106439057 A CN106439057 A CN 106439057A
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- valve body
- valve rod
- gland
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a shutoff valve for ammonia. The shutoff valve comprises a valve body, a valve clack, a valve rod, a valve cove, a hand wheel and an upper gland, wherein the outwards-protruding part valve clack and the valve body form first seal by virtue of a lower Babbitt alloy sealing part; the outwards-protruding part gland comprises a valve body connecting part, a heat insulating part and an upper gland connecting part, wherein the valve body connecting part, the heat insulating part and the upper gland connecting part are sequentially arranged from bottom to top; the outwards-protruding part valve body connecting part is provided with a protruding ring, and the matched position of the outwards-protruding part valve body and the protruding ring is also provided with a second sealing groove; a second O-shaped sealing ring is also arranged between the outwards-protruding part protruding ring and a first sealing groove to form second seal; a third T-shaped sealing ring is arranged between the outwards-protruding part valve rod and the gland; the inner wall of the top of the upper gland connecting part of the outwards-protruding part gland is provided with a ladder-like hole; the ladder-like hole is sequentially provided with the upper gland and a fourth O-shaped sealing from top to bottom. The shutoff valve for ammonia, disclosed by the invention, has the advantages of improving the sealing performance and corrosion resistance, reducing loss of fillers which are filled in the shutoff valve for use, reducing the maintenance rate and improving the use efficiency.
Description
Technical field
The present invention relates to stop valve technical field, more particularly to ammonia stop valve.
Background technology
In the past, the ammonia valve of chemical industry, the usually general common valve of sealing property.No matter common valve is from material
Expect or structure does not possess special feature, on the one hand the sealing property of each sealing position of this valve is bad, can not be very
Prevent dielectric leakage well；On the other hand, under the poisonous and hazardous process conditions of burn into, often poor sealing performance, easily leaks,
Housing is easily bored a hole, and service life is short, it is impossible to meet the particular/special requirement of permanently effective conveying poisonous medium, and ammonia is once leaked out
Come, very big harm can be brought to surrounding enviroment and personal safety.
Existing Chinese patent 201520445242.1, a kind of ammonia stop valve of the entitled high leakproofness of utility model,
Ammonia stop valve is disclosed, including valve body, valve inner is connected with valve seat, valve body top is provided with inside valve gap, valve gap and installs
There is valve rod, valve gap top is connected with securing member, spring assembly is installed between securing member and valve rod, spring assembly bottom is provided with
Sealing device, is provided with seal sleeve between valve gap lower end and valve rod, valve rod upper end is connected with handwheel, and valve rod lower end is connected with gear
Plate, is provided with valve clack cover outside baffle plate, valve clack cover bottom is connected with flap set, and flap set is internal to be provided with flap, and flap is located at
Valve seat top, the flap adopts globe disk, and the upper end of valve seat is the taper surface for being inlaid with babbit, with reasonable in design,
Simple structure, easy for installation, sealing property height, physical life is long.
But the product of above-mentioned patent is in use, also there is certain defect in sealing property, and be filled in which
The heat-insulating property of interior filler is poor, and filler is easily impaired.
Content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the invention provides ammonia stop valve, its object is to improve ammonia use
The sealing property and heat-insulating property of stop valve, antiseptic property, so as to reduce the loss of the filler that filling is used in the inner, reduce which
Maintenance rate, improves its service efficiency.
The technical solution adopted in the present invention is：Ammonia stop valve, including valve body, flap, valve rod, valve gap, handwheel and on
Gland；Wherein male part flap, is movably coupled to valve inner by lower Pasteur's alloy seal part, babbit under male part
Sealing member is T-type structure, and which is fixed in valve body, i.e., form the by lower Pasteur's alloy seal part between valve body and flap
Seal together；
Male part valve rod, one end is enclosed within flap, and the other end connects handwheel；
Male part gland, overall structure is L-shaped, including the valve body connecting portion, insulation portion and the upper press cover that set gradually from the bottom up
Connecting portion；
Male part valve body connecting portion, is additionally provided with flange collar towards on the direction of valve body, is additionally provided with male part valve body and flange collar cooperation
Second seal groove, is additionally provided with the 2nd O type sealing ring between male part flange collar and the first seal groove, ultimately form second sealing；
The T-shaped sealing ring in the 3rd road is provided between male part valve rod and gland；
The upper press cover connecting portion top inner wall of male part gland is provided with stepped bore, and stepped bore is sequentially provided with pressure from top to bottom
Lid and the 4th road O sealing ring.
Further, babbit sealing gasket is additionally provided with, babbit in male part between male part valve body and valve gap
The inner ring of sealing gasket is enclosed within the outside of the T-shaped sealing ring in the 3rd road, and its outer ring is fitted in the inner side of the flange collar of valve gap.
Further, male part valve body and valve gap are detachably fastened connection by several screw bolt and nut, its China and foreign countries
Convex portion rear bolt is full flight screw, and its two ends is fixed by a nut respectively.
Further, a hollow flap nut, evagination are also cased with the outside of one end that male part valve rod is connected with flap
The outside of portion's flap nut and flap are fixedly connected, are connected with valve rod interference on the inside of which by the screw thread for coordinating, so as to by valve rod
Being fixedly connected with flap becomes an entirety.
Further, male part flap nut also includes male part and valve rod connecting portion, male part male part one end face pressure
Tightly so as to play spacing effect on the end face of flap, and valve rod connecting portion extends to valve rod medium position, so as to more
Parcel valve rod.
Further, male part valve stem sleeve is additionally provided with enhancing bushing in the part of flap nut, and male part strengthens bushing and is
The font structure of falling T.
Further, the bottom that male part strengthens the font structure of falling T of bushing is pyramidal structure.
Further, male part valve rod is fixedly connected by hand wheel nut with handwheel.
Further, the height of the insulation portion of male part gland is more than or equal to the valve body connecting portion external diameter of gland.
Compared with prior art, the invention has the beneficial effects as follows：The ammonia stop valve of the present invention, by valve body and valve
Four roads O-shaped sealing or T-shaped sealing have been set gradually between lobe, valve gap, upper press cover from bottom to up, it is achieved thereby that the height of valve body
Degree sealing, further increases the sealing property of stop valve.Additionally, when the sealing of four roads is carried out, sealing and the 4th road for first
Sealing is respectively adopted lower Pasteur's alloy seal part and upper babbit alloy seal part, so as to ensure while sealing is ensured to cut
Only valve is during long-term work, with preferable anti-wear performance, so as to improve its service life, while have preferably being incubated
Performance, finally ensure that the filler that works in the inner of filling has preferably sealing and heat-insulating property, it is ensured that its filler durable
Performance and antiseptic property.
Description of the drawings
Fig. 1 is the structural representation of ammonia stop valve one embodiment；
Wherein：1- valve body, the first seal groove of 101-；Pasteur's alloy seal part under 2-, 3- flap, 31- screw thread；4- valve rod, 41- increases
Strong bushing；5- flap nut, 51- screw thread, 52- male part, 53- valve rod connecting portion；6- bolt, 7- nut, the 2nd O type of 8- is close
Seal, the upper babbit sealing gasket of 9-, 10- valve gap, 1001- valve body connecting portion, 10011- flange collar；1002- insulation portion, 1003-
Upper press cover connecting portion, 10031- stepped bore；11- handwheel, 12- hand wheel nut, 13- upper press cover, the T-shaped sealing ring in the 3rd road of 14-,
The 4th road O sealing ring of 15-.
Specific embodiment
In order to deepen the understanding of the present invention, the present invention is further described with reference to the accompanying drawings and examples, the enforcement
Example is only used for explaining the present invention, protection scope of the present invention is not constituted and limits.
As shown in figure 1, ammonia stop valve, including valve body 1, flap 3, valve rod 4, valve gap 10, handwheel 11 and upper press cover 13；Its
Middle male part flap 3, is movably coupled to inside valve body 1 by lower Pasteur's alloy seal part 2, Pasteur's alloy seal under male part
Part 2 is T-type structure, and which is fixed in valve body 1, i.e., formed by lower Pasteur's alloy seal part 2 between valve body 1 and flap 3
First sealing；Male part valve rod 4, one end is enclosed within flap 3, and the other end connects handwheel 11；Male part gland 10, overall structure
L-shaped, including the valve body connecting portion 1001, insulation portion 1002 and the upper press cover connecting portion 1003 that set gradually from the bottom up；Evagination
Portion valve body connecting portion 1001, is additionally provided with flange collar 10011 towards on the direction of valve body, at male part valve body 1 and 10011 cooperation of flange collar
The second seal groove 101 is additionally provided with, the 2nd O type sealing ring 8 between male part flange collar 10011 and the first seal groove 101, is additionally provided with,
Ultimately form second sealing；The T-shaped sealing ring 14 in the 3rd road is provided between male part valve rod 4 and gland 10；Male part gland 10
1003 top inner wall of upper press cover connecting portion be provided with stepped bore 10031, stepped bore is sequentially provided with upper press cover 13 from top to bottom
With the 4th road O sealing ring 15.
In the above-described embodiments, babbit sealing gasket 9, male part are additionally provided between male part valve body 1 and valve gap 10
The inner ring of upper babbit sealing gasket 9 is enclosed within T-shaped 14 outside of sealing ring in the 3rd road, and its outer ring is fitted in the flange collar 1011 of valve gap 10
Inner side, so as to realize the sealing property at valve body and 10 link position of valve gap, it is ensured that stuffing operation so far will not be produced at position
Raw leakage.
Male part valve body 1 and valve gap 10 are detachably fastened connection, wherein male part by several bolts 6 and nut 7
Rear bolt 6 is full flight screw, and its two ends is fixed by a nut 7 respectively.Facilitate the routine servicing of stop valve, save maintenance
Time.
A hollow flap nut 5, male part flap are also cased with flap 3 on the outside of one end that male part valve rod 4 is connected
The outside of nut 5 and flap 3 are fixedly connected by the screw thread 51 and 31 for coordinating, and are connected with 4 interference of valve rod on the inside of which, so as to by valve
Bar 4 is fixedly connected with flap 3 becomes an entirety, reaches the purpose for improving valve rod 4 and the bonding strength of flap, reduces flap and exists
Direct abrasion during work to valve rod, and then improve its service life.
The flap nut 5 of male part also includes male part 52 and valve rod connecting portion 53,52 one end face pressure of male part male part
Tightly so as to play spacing effect on the end face of flap 3, and valve rod connecting portion 53 extends to 4 medium position of valve rod, so as to more
Valve rod 4 how is wrapped up, the use intensity of valve rod 4 is further enhanced, improve its anti-wear performance.
In the above-described embodiments, male part valve rod 4 be enclosed within flap nut 5 part be additionally provided with enhancing bushing 41, male part
Enhancing bushing 41 is the font structure of falling T.It is pyramidal structure 411 that male part strengthens the bottom of the font structure of falling T of bushing 41, so as to
Prevent valve rod stuck when dismantling with flap.
In the above-described embodiments, male part valve rod 4 is fixedly connected by hand wheel nut 12 with handwheel 11.And male part gland
The height of 10 insulation portion 1002 is more than or equal to 1001 external diameter of valve body connecting portion of gland 10.
The ammonia stop valve of the present invention, by setting gradually from bottom to up between valve body and flap, valve gap, upper press cover
The O-shaped sealing in four roads or T-shaped sealing, it is achieved thereby that the high-seal of valve body, further increases the sealing property of stop valve.
Additionally, when the sealing of four roads is carried out, first sealing and the sealing of the 4th road are respectively adopted lower Pasteur's alloy seal part and upper Pasteur
Alloy sealing member, so as to ensure stop valve while sealing is ensured during long-term work, with preferably wear-resisting
Performance, so as to improve its service life, while with preferable heat-insulating property, finally ensure that the filler that filling is worked in the inner
There is preferably sealing and heat-insulating property, it is ensured that the durable performance of its filler and antiseptic property.
What embodiments of the invention were announced is preferred embodiment, but is not limited thereto, the ordinary skill people of this area
Member, easily according to above-described embodiment, understands the spirit of the present invention, and makes different amplifications and change, but as long as without departing from this
The spirit of invention, all within the scope of the present invention.
Claims (9)
1. ammonia stop valve, it is characterised in that：Including valve body（1）, flap（3）, valve rod（4）, valve gap（10）, handwheel（11）With upper
Gland（13）；Wherein
The flap（3）, by lower Pasteur's alloy seal part（2）It is movably coupled to valve body（1）Inside, the lower babbit
Sealing member（2）For T-type structure, and which is fixed on valve body（1）Interior, i.e. valve body（1）With flap（3）Between by lower babbit
Sealing member（2）Form first sealing；
The valve rod（4）, one end is enclosed within flap（3）Interior, the other end connects handwheel（11）；
The gland（10）, overall structure is L-shaped, including the valve body connecting portion for setting gradually from the bottom up（1001）, insulation portion
（1002）With upper press cover connecting portion（1003）；
The valve body connecting portion（1001）, towards on the direction of valve body, it is additionally provided with flange collar（10011）, the valve body（1）With flange collar
（10011）The second seal groove is additionally provided with cooperation（101）, the flange collar（10011）With the first seal groove（101）Between be additionally provided with
2nd O type sealing ring（8）, ultimately form second sealing；
The valve rod（4）With gland（10）Between be provided with the T-shaped sealing ring in the 3rd road（14）；
The gland（10）Upper press cover connecting portion（1003）Top inner wall is provided with stepped bore（10031）, stepped bore is from upper
To under be sequentially provided with upper press cover（13）With the 4th road O sealing ring（15）.
2. ammonia stop valve according to claim 1, it is characterised in that：The valve body（1）And valve gap（10）Between also set
There is upper babbit sealing gasket（9）, the upper babbit sealing gasket（9）Inner ring be enclosed within the T-shaped sealing ring in the 3rd road（14）Outward
Side, its outer ring is fitted in valve gap（10）Flange collar（1011）Inner side.
3. ammonia stop valve according to claim 1 and 2, it is characterised in that：The valve body（1）And valve gap（10）If by
Dry bolt（6）And nut（7）Connection is detachably fastened, wherein the rear bolt（6）For full flight screw, its two ends is respectively
By a nut（7）Fixing.
4. ammonia stop valve according to claim 1, it is characterised in that：The valve rod（4）With flap（3）One end of connection
Outside is also cased with a hollow flap nut（5）, the flap nut（5）Outside and flap（3）By the screw thread for coordinating
（51,31）It is fixedly connected, on the inside of which and valve rod（4）Interference connects, so as to by valve rod（4）With flap（3）Being fixedly connected becomes one
Individual entirety.
5. ammonia stop valve according to claim 4, it is characterised in that：The flap nut（5）Also include male part
（52）With valve rod connecting portion（53）, the male part（52）End face is pressed on flap（3）End face on spacing so as to play
Effect, and valve rod connecting portion（53）To valve rod（4）Medium position extends, so as to more wrap up valve rod（4）.
6. ammonia stop valve according to claim 5, it is characterised in that：The valve rod（4）It is enclosed within flap nut（5）Portion
Divide and be additionally provided with enhancing bushing（41）, the enhancing bushing（41）For the font structure of falling T.
7. ammonia stop valve according to claim 6, it is characterised in that：The enhancing bushing（41）The font structure of falling T
Bottom be pyramidal structure（411）.
8. ammonia stop valve according to claim 1, it is characterised in that：The valve rod（4）With handwheel（11）By handwheel
Nut（12）It is fixedly connected.
9. ammonia stop valve according to claim 1, it is characterised in that：The gland（10）Insulation portion（1002）Height
Degree is more than or equal to gland（10）Valve body connecting portion（1001）External diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610963200.6A CN106439057A (en) | 2016-10-28 | 2016-10-28 | Shutoff valve for ammonia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610963200.6A CN106439057A (en) | 2016-10-28 | 2016-10-28 | Shutoff valve for ammonia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106439057A true CN106439057A (en) | 2017-02-22 |
Family
ID=58180784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610963200.6A Pending CN106439057A (en) | 2016-10-28 | 2016-10-28 | Shutoff valve for ammonia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106439057A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274040A (en) * | 2019-07-09 | 2019-09-24 | 南通翔骜液压润滑设备有限公司 | Hydraulic hybrid accumulator shut-off valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002089722A (en) * | 2000-09-13 | 2002-03-27 | Tokico Ltd | Pressure control valve |
| CN202451859U (en) * | 2011-12-20 | 2012-09-26 | 季克寅 | High temperature and pressure middle flange seal valve |
| CN102818036A (en) * | 2012-09-03 | 2012-12-12 | 浙江高中压阀门有限公司 | Environment-friendly ammonia valve |
| CN204717001U (en) * | 2015-06-23 | 2015-10-21 | 焦作大学 | A kind of ammonia stop valve of high leak tightness |
| CN206347122U (en) * | 2016-10-28 | 2017-07-21 | 雷力（苏州）阀门有限公司 | Ammonia stop valve |
-
2016
- 2016-10-28 CN CN201610963200.6A patent/CN106439057A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002089722A (en) * | 2000-09-13 | 2002-03-27 | Tokico Ltd | Pressure control valve |
| CN202451859U (en) * | 2011-12-20 | 2012-09-26 | 季克寅 | High temperature and pressure middle flange seal valve |
| CN102818036A (en) * | 2012-09-03 | 2012-12-12 | 浙江高中压阀门有限公司 | Environment-friendly ammonia valve |
| CN204717001U (en) * | 2015-06-23 | 2015-10-21 | 焦作大学 | A kind of ammonia stop valve of high leak tightness |
| CN206347122U (en) * | 2016-10-28 | 2017-07-21 | 雷力（苏州）阀门有限公司 | Ammonia stop valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274040A (en) * | 2019-07-09 | 2019-09-24 | 南通翔骜液压润滑设备有限公司 | Hydraulic hybrid accumulator shut-off valve |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |