CN203297698U - Marine boiler safety valve - Google Patents
Marine boiler safety valve Download PDFInfo
- Publication number
- CN203297698U CN203297698U CN2013203349852U CN201320334985U CN203297698U CN 203297698 U CN203297698 U CN 203297698U CN 2013203349852 U CN2013203349852 U CN 2013203349852U CN 201320334985 U CN201320334985 U CN 201320334985U CN 203297698 U CN203297698 U CN 203297698U
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- Prior art keywords
- valve
- spool
- valve rod
- hole
- marine boiler
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- 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.)
- Withdrawn - After Issue
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a marine boiler safety valve which comprises a valve body. The valve body is provided with a liquid inlet, a liquid outlet and a valve element hole; the liquid outlet and the liquid inlet are communicated through the valve element hole, and a valve element mechanism is arranged in the valve element hole; the valve element mechanism comprises a valve element, a valve rod and a pressure control device, wherein the valve rod is arranged on the valve element, and the pressure control device is arranged on the valve rod; the top end of the valve rod penetrates out of the valve body, the valve rod and a valve base are connected in a sealing mode, the pressure control device is arranged on the portion, penetrating out of the valve body, of the valve rod, a valve element seat is arranged in the valve element hole, the valve element is movably arranged on the valve element seat, an upper circular-arc groove is formed in the outer side of a sealing face of the valve element, and a corresponding lower circular-arc groove is formed in the outer side of the upper surface of the valve element seat. The marine boiler safety valve can effectively keep the steam pressure of a boiler stable.
Description
Technical field
The utility model relates to a kind of safety valve for marine boiler.
Background technique
Marine boiler belongs to a kind of pressurized container, and its working medium mostly is steam,, in order to guarantee the stable of vapor pressure, needs to use boiler safety valve keep the stable of pressure, prevents superpressure, overload and the phenomenon that boiler is blasted occurs.General safety valve is due to the structural design of itself, while there will be overpressure, and the situation of the dumb in time pressure release of safety valve work.
The model utility content
Technical problem to be solved in the utility model is: provide a kind of and can effectively keep the stable safety valve for marine boiler of boiler pressure.
for solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of safety valve for marine boiler, comprise valve body, valve body is provided with liquid entering hole, liquid outlet and spool bore, be connected by spool bore between liquid outlet and liquid entering hole, be provided with spool mechanism in spool bore, spool mechanism comprises spool, be located at the valve rod on spool and be located at pressure control device on valve rod, valve stem tip passes valve body, be tightly connected between valve rod and valve seat, pressure control device is located at valve rod and passes on the valve body part, be provided with valve core case in described spool bore, described spool is movably arranged on valve core case, on the sealing surface of described spool, the outside is provided with arc groove, the described valve core case upper surface outside also is provided with corresponding lower arc groove.
As a kind of preferred scheme, the outside on described valve core case top has been threaded connection regulating ring.
The further technical problem to be solved of the utility model is: provide a kind of Security better safety valve for marine boiler.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: described valve body is provided with two spool bore and two spool control mechanisms.
As a kind of preferred version, described pressure control device comprises the valve gap that is arranged on the valve body top, valve gap is provided with check nut, the valve gap internal thread is connected with the threaded adjustment post that is provided with through hole, threaded adjustment post upper end passes check nut, valve rod top is passed in the threaded adjustment post, be provided with the spring fitting boss on valve rod below the threaded adjustment post, is provided with spring between threaded adjustment post and spring fitting boss on valve rod.
As a kind of preferred version, spring is installed between threaded adjustment post and spring fitting boss by the spring pad at lower two ends disposed thereon.
The further technical problem to be solved of the utility model is: provide a kind of and can check the degree of flexibility of valve disc and the safety valve for marine boiler of the manual emergency decompression of energy.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: described valve stem tip is provided with the lifting nut, promote a side on nut and be hinged with lift lever, the lift lever middle part is provided with ejection and promotes the lifting boss of nut lower surface, and check nut is provided with the lifting spanner that drives lift lever.
As a kind of preferred version, described spool is provided with shoulder hole, comprise tapped hole and the larger circular hole of lower diameter that upper diameter is less, described valve rod bottom is provided with the threaded boss that matches with the spool upper screwed hole, valve rod convex platform end face to the distance of valve rod bottom less than the circular hole degree of depth on spool, pack into spool and make boss be arranged in circular hole on spool of valve rod rotation.
The beneficial effects of the utility model are: because the outside on the sealing surface of spool is provided with upper arc groove, the valve core case upper surface outside also is provided with corresponding lower arc groove, vapor pressure superelevation in boiler, vapor pressure overcomes load on spring band movable valve plug and opens, vapor pressure enters upper and lower arc groove, can produce reverse impulse force, can improve fast the Lift of spool, increase discharge amount, reach effective quick pressure releasing.
Because described valve body is provided with two spool bore and two spool control mechanisms, in the time of can guaranteeing the pipe-line system superpressure, have at least a spool can open pressure release, guaranteed the safety of whole pipe-line system.
Owing to being provided with lift lever and promoting spanner, can be used for checking the degree of flexibility of valve disc, also can be used for the manual emergency pressure release.
Because spool is provided with shoulder hole, comprise tapped hole and the larger circular hole of lower diameter that upper diameter is less, the valve rod bottom is provided with the threaded boss that matches with the spool upper screwed hole, valve rod convex platform end face to the distance of valve rod bottom less than the circular hole degree of depth on spool, pack into spool and make boss be arranged in circular hole on spool of valve rod rotation, adopt and be flexibly connected between spool and valve rod, can prevent that false touch from promoting spanner and causing safety valve to open.
Description of drawings
Fig. 1 is that master of the present utility model looks the sectional structure schematic diagram.
Fig. 2 is left TV structure schematic diagram of the present utility model.
In Fig. 1 to Fig. 2: 1. valve body, 101. liquid entering holes, 102. liquid outlets, 103. spool bore, 2. valve core case, 201. lower arc groove, 3. regulating ring, 4. spool, 401. tapped holes, 402. circular hole, arc groove on 403., 5. valve rod, 501. spring fitting boss, 502. boss, 6. pressure control device, 601. shroudings, 602. valve gaps, 603. check nut, 604. threaded adjustment posts, 605. springs, 606. spring pads, 7. lifting nut, 8. lift lever, 9. promote boss, 10. promotes spanner.
Embodiment
, below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.
As shown in Figure 1-2, a kind of safety valve for marine boiler, comprise valve body 1, valve body 1 is provided with liquid entering hole 101, liquid outlet 102 and two spool 4 holes 103, be connected by spool 4 holes 103 between liquid outlet 102 and liquid entering hole 101, spool is provided with 42 of spools in 4 holes 103, and the outside on 42 tops of spool has been threaded connection regulating ring 3.Be provided with movable spool 4 mechanisms in 42 of spools, spool 4 mechanisms comprise spool 4, be located at the valve rod 5 on spool 4 and be located at pressure control device 6 on valve rod 5.
Valve rod 5 tops are provided with and promote nut 7, promote a side on nut 7 and are hinged with lift lever 8, and lift lever 8 middle parts are provided with ejection and promote the lifting boss 9 of nut 7 lower surfaces, and check nut 603 is provided with the lifting spanner 10 that drives lift lever 8.
The above embodiments are principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not is used for restriction the utility model; Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (7)
1. safety valve for marine boiler, comprise valve body, valve body is provided with liquid entering hole, liquid outlet and spool bore, be connected by spool bore between liquid outlet and liquid entering hole, be provided with spool mechanism in spool bore, spool mechanism comprises spool, be located at the valve rod on spool and be located at pressure control device on valve rod, valve stem tip passes valve body, be tightly connected between valve rod and valve seat, pressure control device is located at valve rod and passes on the valve body part, it is characterized in that: be provided with valve core case in described spool bore, described spool is movably arranged on valve core case, on the sealing surface of described spool, the outside is provided with arc groove, the described valve core case upper surface outside also is provided with corresponding lower arc groove.
2. a kind of safety valve for marine boiler as claimed in claim 1, it is characterized in that: the outside on described valve core case top has been threaded connection regulating ring.
3. a kind of safety valve for marine boiler as claimed in claim 2, it is characterized in that: described valve body is provided with two spool bore and two spool control mechanisms.
4. a kind of safety valve for marine boiler as described in any one in claim 1-3, it is characterized in that: described pressure control device comprises the valve gap that is arranged on the valve body top, valve gap is provided with check nut, the valve gap internal thread is connected with the threaded adjustment post that is provided with through hole, threaded adjustment post upper end passes check nut, valve rod top is passed in the threaded adjustment post, be provided with the spring fitting boss on valve rod below the threaded adjustment post, is provided with spring between threaded adjustment post and spring fitting boss on valve rod.
5. a kind of safety valve for marine boiler as claimed in claim 4, it is characterized in that: described spring is installed between threaded adjustment post and spring fitting boss by the spring pad at lower two ends disposed thereon.
6. a kind of safety valve for marine boiler as claimed in claim 5, it is characterized in that: described valve stem tip is provided with the lifting nut, promote a side on nut and be hinged with lift lever, the lift lever middle part is provided with ejection and promotes the lifting boss of nut lower surface, and check nut is provided with the lifting spanner that drives lift lever.
7. a kind of safety valve for marine boiler as claimed in claim 6, it is characterized in that: described spool is provided with shoulder hole, comprise tapped hole and the larger circular hole of lower diameter that upper diameter is less, described valve rod bottom is provided with the threaded boss that matches with the spool upper screwed hole, valve rod convex platform end face to the distance of valve rod bottom less than the circular hole degree of depth on spool, pack into spool and make boss be arranged in circular hole on spool of valve rod rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203349852U CN203297698U (en) | 2013-06-09 | 2013-06-09 | Marine boiler safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203349852U CN203297698U (en) | 2013-06-09 | 2013-06-09 | Marine boiler safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297698U true CN203297698U (en) | 2013-11-20 |
Family
ID=49573705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203349852U Withdrawn - After Issue CN203297698U (en) | 2013-06-09 | 2013-06-09 | Marine boiler safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297698U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277546A (en) * | 2013-06-09 | 2013-09-04 | 张家港沙洲船用阀门制造有限公司 | Boiler safety valve for ship |
| CN105066101A (en) * | 2015-09-11 | 2015-11-18 | 中国船舶重工集团公司第七�三研究所 | Safety protection system suitable for marine supercharged boiler |
| CN106969176A (en) * | 2017-05-18 | 2017-07-21 | 盐城欧润石化设备制造有限公司 | A kind of automatic decompression valve |
-
2013
- 2013-06-09 CN CN2013203349852U patent/CN203297698U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277546A (en) * | 2013-06-09 | 2013-09-04 | 张家港沙洲船用阀门制造有限公司 | Boiler safety valve for ship |
| CN105066101A (en) * | 2015-09-11 | 2015-11-18 | 中国船舶重工集团公司第七�三研究所 | Safety protection system suitable for marine supercharged boiler |
| CN105066101B (en) * | 2015-09-11 | 2017-02-08 | 中国船舶重工集团公司第七�三研究所 | Safety protection system suitable for marine supercharged boiler |
| CN106969176A (en) * | 2017-05-18 | 2017-07-21 | 盐城欧润石化设备制造有限公司 | A kind of automatic decompression valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131120 Effective date of abandoning: 20150909 |
|
| RGAV | Abandon patent right to avoid regrant |