CN1878977A - Valve for safety valve of tank for storing and carrying oil or chemical substance, and device for preventing valve seat from being freezed and/or ruptured - Google Patents
Valve for safety valve of tank for storing and carrying oil or chemical substance, and device for preventing valve seat from being freezed and/or ruptured Download PDFInfo
- Publication number
- CN1878977A CN1878977A CNA2003801105373A CN200380110537A CN1878977A CN 1878977 A CN1878977 A CN 1878977A CN A2003801105373 A CNA2003801105373 A CN A2003801105373A CN 200380110537 A CN200380110537 A CN 200380110537A CN 1878977 A CN1878977 A CN 1878977A
- Authority
- CN
- China
- Prior art keywords
- valve
- steam
- housing
- valve body
- steam tube
- 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.)
- Granted
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Classifications
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- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/12—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side weight-loaded
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- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
- F16K17/194—Equalising valves predominantly for tanks weight-loaded
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/006—Construction of housing; Use of materials therefor of hydrants
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- 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
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/005—Circulation means for a separate heat transfer fluid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lift Valve (AREA)
Abstract
Disclosed is an apparatus for preventing a valve and a valve seat of a safety valve from being frozen or ruptured to allow the safety valve to smoothly operate when an oil-tanker or a vessel for transporting chemical substance is on a voyage in a cold area. The apparatus includes a casing 10 enclosing a valve body 103 of a gas discharging valve 100 and fixed to a protruded portion 103a of the valve body at an upper portion thereof; a first steam pipe 30 connected to a steam supplying pipe of the vessel, primarily passed through the casing 10, spirally wound around an outside of the valve body 103, secondarily passed through the casing 10, and coupled to a joint 40 of the casing 10; and a second steam pipe 50 connected to the joint 40, primarily passed through an auxiliary casing 111 of a vacuum releasing valve 110 to allow steam passed through the first steam pipe 10 to flow into the second steam pipe 10 to flow into the second steam pipe, wound around a rod 112, secondarily passed through the auxiliary casing 111, and coupled to a steam recovering pipe of the vessel.
Description
Technical field
The present invention relates to a kind of antifreeze or rupture-protection arrangement, it is used for being used in the valve and the valve seat of the safety valve of the jar of storing and deliver oil or chemical substance, especially relate to a kind of like this device, when oil tanker or be used to transport the boats and ships of chemical substance when cold area is navigated by water, it prevents that the valve of safety valve and valve seat are frozen in or break, and operate reposefully to allow safety valve.
Background technique
Usually, at oil tanker or be used for transporting the safety valve that the boats and ships of chemical substance use and constitute by outlet valve 100 and vacuum release valve 110.When oil tanker or boats and ships when cold area is navigated by water, the valve of safety valve and valve seat may be frozen in or break owing to the moisture that comprises the gas of discharging from storage tank or foreign matter or the moisture in atmosphere.Safety valve is lost following function naturally, that is, discharge reposefully by the supersaturated gas that outlet valve will produce in storage tank inside, and the negative pressure that will produce in storage tank inside by vacuum release valve thus changes into barometric pressure.Therefore, storage tank is in the danger that major accident takes place.In order to prevent the generation of accident, the workman will be by sprinkling hot water on safety valve or use steam hose to heat valve and the valve seat that freezes, or remove the ice that is formed in valve and the valve seat.
Under the rugged environment of zubzero temperature, the workman is difficult on the boats and ships of navigation and carries out aforesaid operations.In addition, when the workman operates heat treated, may have an accident.In addition, should repeat heat treated, after handling for the first time, be frozen in to prevent valve and valve seat.Because when weather was ill-conditioned, still be all can not carry out this operation evening on daytime, therefore need a kind of feasible solution.
Summary of the invention
Therefore, one object of the present invention is to solve the problems of the prior art, and a kind of device is provided, and it is used to prevent that the valve of safety valve and valve seat are frozen in or break.
In order to realize above-mentioned and other purpose, a kind of device is provided, its be used for when oil tanker or the boats and ships that transport chemical substance when cold area is navigated by water, prevent that the valve of safety valve and valve seat are frozen in or break, allow described safety valve to operate reposefully, this device comprises: housing, and it surrounds the valve body of outlet valve, and is fixed at an upper portion thereof on the projection of valve body; First steam tube, it links to each other with the steam supply pipe of described boats and ships, and this first steam tube at first passes described housing, and spirally around the exterior circumferential of described valve body, passes described housing once more, and links to each other with the joint of described housing; Second steam tube, it links to each other with described joint, this second steam tube at first passes the auxiliary shell of vacuum release valve, to allow flowing into described second steam tube by the steam of first steam tube, and around a bar, pass described auxiliary shell once more, and link to each other with the Steam Recovery pipe of described boats and ships.
Alternatively, only described first steam tube links to each other with described housing, and second steam tube can link to each other with described auxiliary shell.
Description of drawings
Can more be clear that above-mentioned purpose of the present invention, further feature and advantage by describing the preferred embodiments of the present invention with reference to the accompanying drawings, wherein:
Fig. 1 is the sectional view of device according to the preferred embodiment of the invention, and this device is used to prevent that the valve of safety valve and valve seat are frozen in or break.
Fig. 2 is the sectional view of the device of alternative embodiment according to the present invention, and this device is used to prevent that the valve of safety valve and valve seat are frozen in or break.
Fig. 3 is for to cut open the sectional view of getting along the line 1-1 among Fig. 1.
Embodiment
To describe the preferred embodiments of the present invention in detail now, its example is shown in the drawings.
Since in boats and ships, be used for oil or or the inside of the storage tank of chemical substance produce supersaturated gas, therefore should be at any time gas be discharged to the outside by outlet valve 100.Therefore, in the inner negative pressure that produces of storage tank.For negative pressure is changed into barometric pressure, storage tank comprises vacuum release valve 110.Safety valve is made of outlet valve 100 and vacuum release valve 110.
Particularly, the supersaturated gas in the storage tank rises dish 105, then flows in the valve body 103.Because the dish that is fixed on the bar 106 rises, therefore the counterweight 104 that is fixed on the bar 106 also rises.Thereby, since valve 101 be fixed in formation one gap between the valve seat 102 on bar 106 tops, so supersaturated gas is discharged in the atmosphere.When the discharge of supersaturated gas finished, the internal drop of storage tank was low, thereby thereby valve 101 cuts out valve seat 102 owing to the deadweight of counterweight 104, bar 106 and valve 101 reduces.As a result, in storage tank, form negative pressure owing to the interim discharge of supersaturated gas.At this moment, the valve 114 of vacuum release valve 110 rises with bar 112 and counterweight, thereby forms the gap between valve seat 113 and valve 114.Ambient air flows into the inside of storage tank, to convert negative pressure to barometric pressure.If the interior pressure of holding vessel reaches barometric pressure, then valve 114 contacts with valve seat 113.
One skilled in the art will understand that aforesaid operations repeats continuously.If this operation is not to carry out continuously, then storage tank can explode or break and major accident and pollution take place, and loses.
There is the situation of the boats and ships of delivery oil or chemical substance in the cold area navigation that is low to moderate subzero tens degree.Therefore, owing to the moisture that from the gas that storage tank is discharged, contains or foreign matter or the moisture in atmosphere the valve 101 of outlet valve 100 and the valve 114 and the valve seat 113 of valve seat 102 and vacuum release valve 110 are frozen.Be difficult to maybe can not will discharge in the inner supersaturated gas that produces of storage tank by outlet valve.Simultaneously, the valve 114 and the valve seat 113 of vacuum release valve 110 also are frozen in, and therefore can not correctly operate.Thereby many workmans should need to take urgent measure at any time.Can solve the problems referred to above by instruction of the present invention.
As shown in Figure 1, first steam tube 30 is in the coiling of the internal helicoid ground of housing 10, and it is fixed thereon to pass through U-bolt 60.The method that first steam tube 30 is fixed on the housing 10 can be different.Housing 10 can be inserted into downside with fixing first steam tube 30 from upside.Between housing 10 and valve body 103, form space 22 by spacer element 20.Ambient air flows into housing 10 by space 22, and the rainwater or the seawater that enter housing 10 are discharged by space 22.
The heat heating of first steam tube 30 that the air in the space that is formed between valve body 103 and the housing 10 is linked to each other with the steam supply pipe of boats and ships.By convection action hot air is discharged via the gap 14 that forms between the top 12 of housing 10 and valve 101 or valve seat 102.Therefore, melt soon, then discharge by space 22 attached to valve 101, valve seat 102 and ice, frost or a large amount of snow covers around them.Valve 101 can freely separate with valve seat 102, to carry out its function.Periodically repeat aforesaid operations, thereby valve 101 and valve seat 102 are not frozen in.In addition, as shown in Figure 1, if being formed with the top 12 of housing 10, vertical tube 14a links to each other, then when the hot air in housing 10 is discharged by gap 14, this vertical tube has prevented hot air because at the cool air of housing 10 outsides and cooling is rapidly melted quickly thereby make attached to the ice on the periphery of valve 101 and valve seat 102.Simultaneously, when the supersaturated gas in storage tank was lifted and be discharged to valve 101 in the atmosphere, this vertical tube played a part the vertical guide of discharging of gas.In addition, vertical tube 14a prevents to flow into housing 10 at the term of voyage seawater.
As shown in Figure 1, first steam tube 30 passes housing 10, and links to each other with joint 40.Second steam tube 50 links to each other with joint 40, and passes vacuum release valve 110 and auxiliary shell 111.Then, second steam tube 50 around bar 112 coiling once, twice or more times, and pass auxiliary shell 111, to link to each other with the Steam Recovery pipe of boats and ships.As shown in Figure 1, the air of second steam tube, 50 heating in auxiliary shell 111 with the formation convection action, thereby can melt the ice that is frozen on valve 114, valve seat 113 and the flame screen.Therefore, valve 114 can freely separate with valve seat, to play the effect of vacuum release valve 110.
Fig. 2 shows alternative embodiment of the present invention, the difference between various details embodiment and this alternative embodiment.
Particularly, as basic embodiment saw from shown in Figure 1, first steam tube 30 is connected on the steam supply pipe of boats and ships, links to each other with second steam tube 50 then.Steam by second steam tube 50 returns by the Steam Recovery pipe of boats and ships.
On the contrary, according to alternative embodiment of the present invention, the first steam tube 30a does not link to each other by joint 40 with the second steam tube 50a, but links to each other with the Steam Recovery pipe with the steam supply pipe of boats and ships respectively.In other words, alternative embodiment of the present invention can obtain from the modification to the basic embodiment of the present invention shown in Fig. 1, and it is substantially similar with basic embodiment's structure, except the first steam tube 30a does not link to each other by joint 40 with the second steam tube 50a, but link to each other with the Steam Recovery pipe with the steam supply pipe of boats and ships respectively.Therefore, omitted alternative embodiment of the present invention at this.
Except spacer element shown in Figure 2 20, housing 10 can form a hole in its bottom, or forms space 22 by other method between housing 10 and valve body 103.Because space 22 is used to discharge water or liquid or the guiding surrounding atmosphere inflow housing 10 that flows to housing 10, therefore can adopt various designs to form space 22.
Though invention has been described and explanation with reference to its preferred embodiment, those skilled in the art is easy to make various modifications and variations under the situation that does not break away from the spirit and scope of the present invention.Therefore, the intent of the present invention is to cover the interior modifications and variations of the present invention of scope of claims and equivalent thereof.
Industrial applicibility
Find out that from above-mentioned explanation device of the present invention can or be used for transporting the ship of chemical substance at oil tanker When oceangoing ship navigates by water, prevent that the valve of safety valve and valve seat are frozen in or break, to allow in cold area Safety valve operates reposefully. In addition, because the valve of safety valve and valve seat be not frozen in or break, Therefore the maintenance of safety valve can be realized easily, and its life-span can be prolonged.
Claims (6)
1, a kind of device, be used for when oil tanker or the boats and ships that transport chemical substance when cold area is navigated by water, prevent that the valve of safety valve and valve seat are frozen in or break, operate reposefully to allow described safety valve, this device comprises:
Housing (10), it surrounds the valve body (103) of outlet valve (100), and is fixed at an upper portion thereof on the projection (103a) of valve body (103);
First steam tube (30), it links to each other with the steam supply pipe of described boats and ships, and this first steam tube at first passes described housing (10), and spirally around described valve body (103) outside, pass described housing (10) once more, and link to each other with the joint (40) of described housing (10); And
Second steam tube (50), it links to each other with described joint (40), this second steam tube at first passes the auxiliary shell (111) of vacuum release valve (110) to allow flowing into described second steam tube by the steam of first steam tube (10), and around a bar (112), pass described auxiliary shell (111) once more, and link to each other with the Steam Recovery pipe of described boats and ships.
2, a kind of device, be used for when oil tanker or the boats and ships that are used to transport chemical substance when cold area is navigated by water, prevent that the valve of safety valve and valve seat are frozen in or break, operate reposefully to allow described safety valve, this device comprises:
Housing (10), it surrounds the valve body (103) of outlet valve (100), and is fixed at an upper portion thereof on the projection (103a) of valve body (103);
First steam tube (30a), it links to each other with the steam supply pipe of described boats and ships, and this first steam tube at first passes described housing (10), and spirally around described valve body (103) outside, pass described housing (10) once more, and link to each other with the Steam Recovery pipe of described boats and ships; And
Second steam tube (50a), it links to each other with described Steam Recovery pipe, and this second steam tube at first passes the auxiliary shell (111) of vacuum release valve (110), and around a bar (112), pass described auxiliary shell (111) once more, and link to each other with described Steam Recovery pipe.
3, device according to claim 1 and 2, it is characterized in that, between the top (12) of described housing (10) and described valve seat (102), be formed with gap (14), discharged by described gap (14) by described first steam tube (30) or steam-heated air (30a) thereby make in the space between described housing (10) and described valve body (103), so that the periphery of described valve seat (102) and valve (101) is concentrated heating.
4, device according to claim 1 and 2 is characterized in that, described first steam tube (30) or (30a) be fixed on the internal surface of described housing (10) by U-bolt.
5, device according to claim 1 and 2, it is characterized in that, spacer element (20) is fixed between described housing (10) and the described valve body (103), thereby forms space (22) between described housing (10) and described valve body (103), to form air passageways and discharge channel.
6, device according to claim 1 and 2 is characterized in that, vertical tube (14a) links to each other with the described top (12) of described housing (10).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2003/002165 WO2005038325A1 (en) | 2003-10-16 | 2003-10-16 | Valve for safety valve of tank for storing and carrying oil or chemical substance, and apparatus for preventing valve seat from being freezed and/or ruptured |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1878977A true CN1878977A (en) | 2006-12-13 |
| CN100387883C CN100387883C (en) | 2008-05-14 |
Family
ID=34464674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801105373A Expired - Fee Related CN100387883C (en) | 2003-10-16 | 2003-10-16 | Valve for safety valve of tank for storing and carrying oil or chemical substance, and device for preventing valve seat from being freezed and/or ruptured |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN100387883C (en) |
| AU (1) | AU2003269560A1 (en) |
| WO (1) | WO2005038325A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748517A (en) * | 2011-04-22 | 2012-10-24 | 盐城中油船舶海洋工程科技有限公司 | Efficient cargo oil tank high-speed ventilation valve cover |
| CN103016802A (en) * | 2011-09-22 | 2013-04-03 | 新仓工业株式会社 | Relief valve |
| CN103538824A (en) * | 2013-10-29 | 2014-01-29 | 恒和嘉华科技有限公司 | Sea valve |
| CN103988005A (en) * | 2011-12-09 | 2014-08-13 | 普瑞斯-维科工程有限公司 | A pressure relief valve |
| US9657847B2 (en) | 2012-07-18 | 2017-05-23 | Pres-Vac Engineering Aps | Pressure relief valve |
| CN108612888A (en) * | 2018-06-28 | 2018-10-02 | 武汉腾索科技有限公司 | A kind of mechanical sealing valve assembly |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007074321A1 (en) * | 2005-12-28 | 2007-07-05 | Prysmian Cables & Systems Limited | Pressure relief valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62185993U (en) * | 1986-05-20 | 1987-11-26 | ||
| NL9300133A (en) * | 1993-01-22 | 1994-08-16 | Goudsche Machinefabriek Bv | Steam barrel, equipped with a blow-off valve. |
| KR200179179Y1 (en) * | 1999-11-09 | 2000-04-15 | 포항종합제철주식회사 | Pressure releasing apparatus of storage tank |
-
2003
- 2003-10-16 CN CNB2003801105373A patent/CN100387883C/en not_active Expired - Fee Related
- 2003-10-16 WO PCT/KR2003/002165 patent/WO2005038325A1/en active Application Filing
- 2003-10-16 AU AU2003269560A patent/AU2003269560A1/en not_active Abandoned
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748517A (en) * | 2011-04-22 | 2012-10-24 | 盐城中油船舶海洋工程科技有限公司 | Efficient cargo oil tank high-speed ventilation valve cover |
| CN102748517B (en) * | 2011-04-22 | 2014-01-29 | 盐城中油船舶海洋工程科技有限公司 | Efficient cargo oil tank high-speed ventilation valve cover |
| CN103016802A (en) * | 2011-09-22 | 2013-04-03 | 新仓工业株式会社 | Relief valve |
| CN103016802B (en) * | 2011-09-22 | 2015-05-20 | 新仓工业株式会社 | Relief valve |
| CN103988005A (en) * | 2011-12-09 | 2014-08-13 | 普瑞斯-维科工程有限公司 | A pressure relief valve |
| CN103988005B (en) * | 2011-12-09 | 2015-09-30 | 普瑞斯-维科工程有限公司 | Pressure-relief valve |
| US9644756B2 (en) | 2011-12-09 | 2017-05-09 | Pres-Vac Engineering Aps | Pressure relief valve |
| US9657847B2 (en) | 2012-07-18 | 2017-05-23 | Pres-Vac Engineering Aps | Pressure relief valve |
| CN103538824A (en) * | 2013-10-29 | 2014-01-29 | 恒和嘉华科技有限公司 | Sea valve |
| CN108612888A (en) * | 2018-06-28 | 2018-10-02 | 武汉腾索科技有限公司 | A kind of mechanical sealing valve assembly |
| CN108612888B (en) * | 2018-06-28 | 2023-08-01 | 武汉腾索科技有限公司 | Mechanical sealing valve assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005038325A1 (en) | 2005-04-28 |
| CN100387883C (en) | 2008-05-14 |
| AU2003269560A1 (en) | 2005-05-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20121016 |