CN204716994U - A kind of explosion-proof type ammonia stop valve - Google Patents
A kind of explosion-proof type ammonia stop valve Download PDFInfo
- Publication number
- CN204716994U CN204716994U CN201520445198.4U CN201520445198U CN204716994U CN 204716994 U CN204716994 U CN 204716994U CN 201520445198 U CN201520445198 U CN 201520445198U CN 204716994 U CN204716994 U CN 204716994U
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- valve
- explosion
- proof type
- type ammonia
- valve body
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Abstract
The utility model relates to a kind of explosion-proof type ammonia stop valve, it comprises valve body, valve inner is connected with valve seat, influent stream mouth is provided with on the left of valve body, right side is provided with out head piece, the housing of influent stream mouth side is provided with decompression anti-explosion device, valve body top is provided with valve gap, valve gap inside is provided with valve rod, valve rod upper end is connected with handwheel, stem lower portion is provided with decompressor, valve rod lower end is connected with valve clack cover, valve clack cover is connected with flap, flap bottom is provided with slow pressure device, decompression anti-explosion device has the function of the self pressure relief when fluid sudden high voltage, can effectively be without prejudice by proterctive equipment, the generation of prevention explosive accident, decompressor and rubber delay pressure device, there is well slow pressure and resistance to compression function, valve member can be protected well, extend the working life of valve member, the utility model has reasonable in design, explosion-proof performance is strong, good sealing effect, long service life, 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 explosion-proof type ammonia stop valve.
Background technique
The start-stop device that ammonia stop valve ends as control media, be widely used in store oxygen, nitrogen, liquefied ammonia, the special gas pipelines such as liquid gas, the effect of ammonia stop valve makes the pressure drop of pressurized gas to can in using scope, but in use, often there will be the hydrodynamic pressure flowing through valve body caused due to misoperation or other reason suddenly to increase, the common ammonia stop valve resistance to compression of usually selecting at present can be poor, when the pressure of fluid is greater than the maximum resistance to compression value of valve body, cause equipment explosion, thus pollution surrounding enviroment, the even life safety of the neighbouring personnel of harm.Therefore, design one has explosion-proof performance, long service life, and safe and reliable ammonia stop valve has very important significance.
Model utility content
The purpose of this utility model is to solve the defect and deficiency that prior art exists, providing a kind of when sudden high voltage, can self pressure relief, the explosion-proof type ammonia stop valve that available protecting equipment and prevention explosive accident occur.
The purpose of this utility model is achieved in that a kind of explosion-proof type ammonia stop valve, it comprises valve body, described valve inner is connected with valve seat, influent stream mouth is provided with on the left of described valve body, right side is provided with out head piece, the housing of described influent stream mouth side is provided with decompression anti-explosion device, described valve body top is provided with valve gap, described valve gap inside is provided with valve rod, described valve rod upper end is connected with handwheel, between described valve rod and valve gap, stuffing box packing is installed, described stuffing box packing top is provided with Gland, described stem lower portion is provided with decompressor, described valve rod lower end is connected with valve clack cover, described valve clack cover is connected with flap, described flap bottom is provided with slow pressure device, described slow pressure device coordinates with valve seat.
Described valve rod lower end is provided with ledge structure, and decompressor is arranged on step top.
Described decompressor is multiple decompression collar compositions being enclosed within valve rod periphery.
Described slow pressure device is fitted in flap lower end, in lower narrow wide inverted trapezoidal structure.
Described decompression anti-explosion device is a kind of explosion-proof device with releasing pressure automatically function.
Described valve seat and valve body are structure as a whole.
Described valve gap and valve body are that tenon-slot type is tightly connected.
The beneficial effect that the utility model can reach: the automatic pressure relief anti-explosion device that the utility model adopts, can when fluid sudden high voltage self pressure relief, reduce the pressure of fluid, thus proterctive equipment effectively, the generation of prevention explosive accident; The decompressor pressure device that eases up all forms by High-molecular rubber material; there is well slow pressure and anti-pressure ability, valve member can be protected well, extend the working life of valve member; the utility model has the advantages such as reasonable in design, explosion-proof performance strong, good sealing effect, long service life, safe and reliable.
Accompanying drawing explanation
Fig. 1 is a kind of explosion-proof type ammonia of the utility model stop valve.
In figure: 1, influent stream mouth, 2, slow pressure device, 3, decompression anti-explosion device, 4, valve gap, 5, stuffing box packing, 6, handwheel, 7, Gland, 8, valve rod, 9, decompressor, 10, valve clack cover, 11, flap, 12, valve seat, 13, go out head piece, 14, valve body.
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 explosion-proof type ammonia stop valve, it comprises valve body 14, described valve body 14 is internally connected with valve seat 12, influent stream mouth 1 is provided with on the left of described valve body 14, right side is provided with out head piece 13, the housing of described influent stream mouth 1 side is provided with decompression anti-explosion device 3, described valve body 14 top is provided with valve gap 4, described valve gap 4 inside is provided with valve rod 8, described valve rod 8 upper end is connected with handwheel 6, between described valve rod 8 and 4 of valve gap, stuffing box packing 5 is installed, described stuffing box packing 5 top is provided with Gland 7, described valve rod 8 bottom is provided with decompressor 9, described valve rod 8 lower end is connected with valve clack cover 10, described valve clack cover 10 is connected with flap 11, described flap 11 bottom is provided with slow pressure device 2, described slow pressure device 2 coordinates with valve seat 12.
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 declines, and the decline of valve rod drives flap to move downward, and along with the decline of flap, flap lower end is delayed pressure device and also moved downward, until slow pressure device contacts with valve base sealing, cut off path, stop valve is closed; Be rotated counterclockwise handwheel, handwheel drives band ovable valve stem to move upward, valve rod drives flap also to move upward thereupon, flap drives slow pressure device to move upward, and along with the rising of slow pressure device, slow pressure device departs from valve seat, open path, stop valve is opened, and the utility model has that reasonable in design, explosion-proof performance is strong, good sealing effect, the advantages such as long service life.
Embodiment 2
As shown in Figure 1, a kind of explosion-proof type ammonia stop valve, it comprises valve body 14, described valve body 14 is internally connected with valve seat 12, described valve body 14 side is divided and is provided with influent stream mouth 1, right side is provided with out head piece 13, the housing of described influent stream mouth 1 side is provided with decompression anti-explosion device 3, described valve body 14 top is provided with valve gap 4, described valve gap 4 inside is provided with valve rod 8, described valve rod 8 upper end is connected with handwheel 6, between described valve rod 8 and 4 of valve gap, stuffing box packing 5 is installed, described stuffing box packing 5 top is provided with Gland 7, described valve rod 8 bottom is provided with decompressor 9, described valve rod 8 lower end is connected with valve clack cover 10, described valve clack cover 10 is connected with flap 11, described flap 11 bottom is provided with slow pressure device 2, described slow pressure device 2 coordinates with valve seat 12.
Described valve rod 8 lower end is provided with ledge structure, and decompressor is arranged on step top.
Described decompressor 9 is multiple decompression collar compositions being enclosed within valve rod 8 periphery.
Described slow pressure device 2 is fitted in flap 11 lower end, in lower narrow wide inverted trapezoidal structure.
Described decompression anti-explosion device 3 is a kind of explosion-proof device with releasing pressure automatically function.
Described valve seat 12 is structure as a whole with valve body 14.
Described valve gap 4 with valve body 14 for tenon-slot type is tightly connected.
Valve gap of the present utility model and valve body adopt tenon-slot type to be tightly connected, add the sealing of valve body, automatic pressure relief anti-explosion device has the function of the self pressure relief when fluid sudden high voltage, reduces the pressure of fluid, thus proterctive equipment effectively, the generation of prevention explosive accident; Rotation hand wheel, handwheel band ovable valve stem moves up and down, valve rod moves up and down and drives the slow pressure device of flap lower end to move up and down, slow pressure device is made to depart from valve seat and contact, thus the opening and closing of stop valve can be completed like a cork, the decompressor being enclosed within valve rod periphery can alleviate the pressure suffered by valve rod, the polymer rubber being fitted in flap lower end delays pressure device can alleviate pressure suffered by flap, there is well slow pressure and resistance to compression function, valve member can be protected well, extend the working life of valve member; The utility model has that reasonable in design, explosion-proof performance is strong, good sealing effect, long service life, safe and reliable advantage.
Claims (7)
1. an explosion-proof type ammonia stop valve, it comprises valve body, it is characterized in that: described valve inner is connected with valve seat, influent stream mouth is provided with on the left of described valve body, right side is provided with out head piece, the housing of described influent stream mouth side is provided with decompression anti-explosion device, described valve body top is provided with valve gap, described valve gap inside is provided with valve rod, described valve rod upper end is connected with handwheel, between described valve rod and valve gap, stuffing box packing is installed, described stuffing box packing top is provided with Gland, described stem lower portion is provided with decompressor, described valve rod lower end is connected with valve clack cover, described valve clack cover is connected with flap, described flap bottom is provided with slow pressure device, described slow pressure device coordinates with valve seat.
2. a kind of explosion-proof type ammonia stop valve according to claim 1, is characterized in that: described valve rod lower end is provided with ledge structure, and decompressor is arranged on step top.
3. a kind of explosion-proof type ammonia stop valve according to claim 1, is characterized in that: described decompressor is multiple decompression collar compositions being enclosed within valve rod periphery.
4. a kind of explosion-proof type ammonia stop valve according to claim 1, is characterized in that: described slow pressure device is fitted in flap lower end, in lower narrow wide inverted trapezoidal structure.
5. a kind of explosion-proof type ammonia stop valve according to claim 1, is characterized in that: described decompression anti-explosion device is a kind of explosion-proof device with releasing pressure automatically function.
6. a kind of explosion-proof type ammonia stop valve according to claim 1, is characterized in that: described valve seat and valve body are structure as a whole.
7. a kind of explosion-proof type ammonia stop valve according to claim 1, is characterized in that: described valve gap and valve body are that tenon-slot type is tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520445198.4U CN204716994U (en) | 2015-06-23 | 2015-06-23 | A kind of explosion-proof type ammonia stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520445198.4U CN204716994U (en) | 2015-06-23 | 2015-06-23 | A kind of explosion-proof type ammonia stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716994U true CN204716994U (en) | 2015-10-21 |
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ID=54315993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520445198.4U Expired - Fee Related CN204716994U (en) | 2015-06-23 | 2015-06-23 | A kind of explosion-proof type ammonia stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204716994U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013741A (en) * | 2017-05-17 | 2017-08-04 | 南通艾迈特机械有限公司 | A kind of self checking structure of valve |
| CN108150654A (en) * | 2018-03-31 | 2018-06-12 | 大连函量科技发展有限公司 | A kind of resistance to pressure valve of ocean engineering vehicle antirust |
-
2015
- 2015-06-23 CN CN201520445198.4U patent/CN204716994U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013741A (en) * | 2017-05-17 | 2017-08-04 | 南通艾迈特机械有限公司 | A kind of self checking structure of valve |
| CN108150654A (en) * | 2018-03-31 | 2018-06-12 | 大连函量科技发展有限公司 | A kind of resistance to pressure valve of ocean engineering vehicle antirust |
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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: 20151021 Termination date: 20160623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |