CN204717001U - A kind of ammonia stop valve of high leak tightness - Google Patents
A kind of ammonia stop valve of high leak tightness Download PDFInfo
- Publication number
- CN204717001U CN204717001U CN201520445242.1U CN201520445242U CN204717001U CN 204717001 U CN204717001 U CN 204717001U CN 201520445242 U CN201520445242 U CN 201520445242U CN 204717001 U CN204717001 U CN 204717001U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- cover
- leak tightness
- baffle plate
- 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
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Abstract
The utility model relates to a kind of ammonia stop valve of high leak tightness, it comprises valve body, valve inner is connected with valve seat, valve body top is provided with valve gap, valve gap inside is provided with valve rod, valve gap top is connected with fastening piece, between fastening piece and valve rod, spring assembly is installed, spring assembly bottom is provided with seal arrangement, between valve gap lower end and valve rod, seal sleeve is installed, valve rod upper end is connected with handwheel, valve rod lower end is connected with baffle plate, baffle plate outside is provided with valve clack cover, valve clack cover bottom is connected with flap cover, flap cover inside is provided with flap, flap is positioned at valve seat top, flap of the present utility model adopts globe disk, the upper end of valve seat is the conical surface being inlaid with Babbitt, have reasonable in design, structure is simple, easy for installation, sealability is high, physical life is long, safe and reliable advantage.
Description
Technical field
The utility model belongs to technical field of chemical, is specifically related to a kind of stop valve, particularly a kind of ammonia stop valve of high leak tightness.
Background technique
The start-stop device that ammonia stop valve ends as control media, is widely used in the special gas pipelines such as store oxygen, nitrogen, liquefied ammonia, liquid gas, also often uses oil refinery, petrochemical plant, the cooling system in thermal power plant.The effect of ammonia stop valve makes the pressure drop of pressurized gas to can in using scope.Usually the common ammonia stop valve poor sealing performance selected at present, working life is short, can not meet usage requirement, the leakage of medium can not be prevented well, especially some poisonous, mordant media are once reveal, and can cause serious harm to the safety of life and property of the people and ecotope.Therefore, design that a kind of sealability is high, long service life, safe and reliable ammonia stop valve have very important significance.
Model utility content
The purpose of this utility model is defect in order to overcome prior art and deficiency, provides that a kind of sealing is high, long service life, ammonia stop valve safe and reliable, easy to use.
The purpose of this utility model is achieved in that a kind of ammonia stop valve of high leak tightness, described valve inner is connected with valve seat, described valve body top is provided with valve gap, described valve gap inside is provided with valve rod, described valve gap top is connected with fastening piece, between described fastening piece and valve rod, spring assembly is installed, described spring assembly bottom is provided with seal arrangement, between described valve gap lower end and valve rod, seal sleeve is installed, described valve rod upper end is connected with handwheel, described valve rod lower end is connected with baffle plate, described baffle plate outside is provided with valve clack cover, described valve clack cover bottom is connected with flap cover, described flap cover inside is provided with flap, described flap is positioned at valve seat top.
Described fastening piece inwall is provided with groove, is provided with O RunddichtringO in described groove.
The upper and lower two ends of described spring assembly are separately installed with upper spring seat and lower spring cup, described lower spring cup bottom and seal arrangement upper contact.
Described flap is spherical structure, and flap top contacts with baffle plate downside, contacts bottom flap with the valve seat upper-end surface being inlaid with Babbitt block.
Described valve body and valve seat are structure as a whole.
Described baffle plate outer side surface and the spacing of valve clack cover inwall are 10 millimeters.
Larger than flap diameter 5 millimeters of the upper end-hole diameter of described flap cover, the lower end mouth diameter of flap cover is less than flap diameter 5 millimeters.
The beneficial effect that the utility model can reach: valve body top of the present utility model adopts fastening piece and seal arrangement sealing, adopts seal sleeve, substantially increase the sealability of valve member between valve inner and valve rod; The surface of contact of valve seat upper end and flap lower end is conical surface, conical surface is inlaid with Babbitt block, enhances the hardness of surface of contact, extends valve member working life; Flap adopts globe disk, globe disk freely rotates in flap cover, the surface of contact of continuous adjustment flap and valve seat, efficiently solve the wearing and tearing between surface of contact and damage, prevent from causing medium to reveal the potential safety hazard brought due to poor sealing performance, not only increase valve body Security and sealing, and extend the working life of valve.The utility model have reasonable in design, structure is simple, switch is light, easy to install, good sealing effect, long service life, safe and reliable advantage.
Accompanying drawing explanation
Fig. 1 is the ammonia stop valve of a kind of high leak tightness of the utility model.
In figure: 1, valve body, 2, flap, 3, baffle plate, 4, hex screw, 5, hexagon nut, 6, valve gap, 7, seal arrangement, 8, fastening piece, 9, handwheel, 10, spring assembly, 11, valve rod, 12, seal sleeve, 13, valve clack cover, 14, flap cover, 15, Babbitt block, 16, valve seat.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail.
Embodiment 1
As shown in Figure 1, a kind of ammonia stop valve of high leak tightness, it comprises valve body 1, described valve body 1 is internally connected with valve seat 16, described valve body 1 top is provided with valve gap 6, described valve gap 6 inside is provided with valve rod 11, described valve gap 6 top is connected with fastening piece 8, between described fastening piece 8 and valve rod 11, spring assembly 10 is installed, described spring assembly 10 bottom is provided with seal arrangement 7, between described valve gap 6 lower end and valve rod 11, seal sleeve 12 is installed, described valve rod 11 upper end is connected with handwheel 9, described valve rod 11 lower end is connected with baffle plate 3, described baffle plate 3 outside is provided with valve clack cover 13, described valve clack cover 13 bottom is connected with flap cover 14, described flap overlaps 14 inside and is provided with flap 4, described flap 4 is positioned at valve seat 16 top.
The utility model is moved up and down by rotation hand wheel band ovable valve stem, and valve rod moves up and down and drives flap motion, by the contact of flap and valve seat with departs from and come the closed of valve and unlatching; Turn clockwise handwheel, and handwheel band ovable valve stem falls, along with the whereabouts of valve rod, and baffle plate and flap upper-end contact, promote flap and move downward, contact after flap drops to certain position with valve seat is closely sealed, cut off path, stop valve is closed; Be rotated counterclockwise handwheel, handwheel band ovable valve stem moves upward, baffle plate leaves flap and drives valve clack cover and flap cover to move upward, along with the rising of flap cover, the flap in flap cover also rises thereupon, thus flap is lifted off a seat, open path, stop valve is opened, and the utility model has that structure is simple, reasonable in design, good sealing effect, the advantage of long service life.
Embodiment 2
As shown in Figure 1, a kind of ammonia stop valve of high leak tightness, it comprises valve body 1, described valve body 1 is internally connected with valve seat 16, described valve body 1 top is provided with valve gap 6, described valve gap 6 inside is provided with valve rod 11, described valve gap 6 top is connected with fastening piece 8, between described fastening piece 8 and valve rod 11, spring assembly 10 is installed, described spring assembly 10 bottom is provided with seal arrangement 7, between described valve gap 6 lower end and valve rod 11, seal sleeve 12 is installed, described valve rod 11 upper end is connected with handwheel 9, described valve rod 11 lower end is connected with baffle plate 3, described baffle plate 3 outside is provided with valve clack cover 13, described valve clack cover 13 bottom is connected with flap cover 14, described flap overlaps 14 inside and is provided with flap 4, described flap 4 is positioned at valve seat 16 top.
Described fastening piece 8 inwall is provided with groove, is provided with O RunddichtringO in groove.
Described spring assembly about 10 two ends are separately installed with upper spring seat and lower spring cup, described lower spring cup bottom and seal arrangement 7 upper contact.
Described flap 2 is spherical structure, and flap 2 top contacts with baffle plate 3 downside, with valve seat 16 upper-end contact being inlaid with Babbitt block bottom flap 2.
Described valve body 1 is structure as a whole with valve seat 16.
The spacing of described baffle plate 3 outer side surface and valve clack cover 13 inwall is 10 millimeters.
Larger than flap 2 diameter 5 millimeters of the upper end-hole diameter of described flap cover 14, the lower end mouth diameter of flap cover 14 is less than flap 2 diameter 5 millimeters.
Valve gap of the present utility model and valve body adopt hex screw to be connected and fixed, and the O RunddichtringO in fastening piece inboard wall groove and the seal arrangement of spring assembly bottom play the effect of double seal, improve the sealability of stop valve; Moved up and down by the mode band ovable valve stem of rotation hand wheel, baffle plate drive valve clack cover and flap overlaps and flap overlap in flap move up and down along with moving up and down of valve rod, baffle plate outer side surface and valve clack cover inwall have the spacing of 10 millimeters, baffle plate can be made freely up and down movable in valve clack cover, anti-baffle plate and valve clack cover stuck; Larger than flap diameter 5 millimeters of the upper end-hole diameter of flap cover, the lower end mouth diameter of flap cover is less than flap diameter 5 millimeters, flap can be made easily to put into flap cover and flap cover can not be departed from, moving up and down of flap cover drives valve flap contacts and departs from valve seat, thus closedown and the unlatching of stop valve can be completed like a cork, it is light, esy to use, safe and reliable that the utility model has switch, the advantage that sealability is high.
Claims (7)
1. the ammonia stop valve of a high leak tightness, it comprises valve body, it is characterized in that: described valve inner is connected with valve seat, described valve body top is provided with valve gap, described valve gap inside is provided with valve rod, described valve gap top is connected with fastening piece, between described fastening piece and valve rod, spring assembly is installed, described spring assembly bottom is provided with seal arrangement, between described valve gap lower end and valve rod, seal sleeve is installed, described valve rod upper end is connected with handwheel, described valve rod lower end is connected with baffle plate, described baffle plate outside is provided with valve clack cover, described valve clack cover bottom is connected with flap cover, described flap cover inside is provided with flap, described flap is positioned at valve seat top.
2. the ammonia stop valve of a kind of high leak tightness according to claim 1, is characterized in that: described fastening piece inwall is provided with groove, is provided with O RunddichtringO in described groove.
3. the ammonia stop valve of a kind of high leak tightness according to claim 1, is characterized in that: the upper and lower two ends of described spring assembly are separately installed with upper spring seat and lower spring cup, described lower spring cup bottom and seal arrangement upper contact.
4. the ammonia stop valve of a kind of high leak tightness according to claim 1, is characterized in that: described flap is spherical structure, and flap top contacts with baffle plate downside.
5. the ammonia stop valve of a kind of high leak tightness according to claim 1, is characterized in that: described valve body and valve seat are structure as a whole.
6. the ammonia stop valve of a kind of high leak tightness according to claim 1, is characterized in that: described baffle plate outer side surface and the spacing of valve clack cover inwall are 10 millimeters.
7. the ammonia stop valve of a kind of high leak tightness according to claim 1, is characterized in that: larger than flap diameter 5 millimeters of the upper end-hole diameter of described flap cover, the lower end mouth diameter of flap cover is less than flap diameter 5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520445242.1U CN204717001U (en) | 2015-06-23 | 2015-06-23 | A kind of ammonia stop valve of high leak tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520445242.1U CN204717001U (en) | 2015-06-23 | 2015-06-23 | A kind of ammonia stop valve of high leak tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204717001U true CN204717001U (en) | 2015-10-21 |
Family
ID=54316000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520445242.1U Expired - Fee Related CN204717001U (en) | 2015-06-23 | 2015-06-23 | A kind of ammonia stop valve of high leak tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204717001U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439057A (en) * | 2016-10-28 | 2017-02-22 | 雷力（苏州）阀门有限公司 | Shutoff valve for ammonia |
| CN108626409A (en) * | 2017-03-17 | 2018-10-09 | 双恒阀门集团有限公司 | A kind of emergency isolation valve |
| CN108962670A (en) * | 2018-09-30 | 2018-12-07 | 顾诚 | A kind of block-resistant type flow switch |
-
2015
- 2015-06-23 CN CN201520445242.1U patent/CN204717001U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439057A (en) * | 2016-10-28 | 2017-02-22 | 雷力（苏州）阀门有限公司 | Shutoff valve for ammonia |
| CN108626409A (en) * | 2017-03-17 | 2018-10-09 | 双恒阀门集团有限公司 | A kind of emergency isolation valve |
| CN108962670A (en) * | 2018-09-30 | 2018-12-07 | 顾诚 | A kind of block-resistant type flow switch |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160623 |