CN204280407U - A kind of tank line annex leaks Self-plugging device - Google Patents
A kind of tank line annex leaks Self-plugging device Download PDFInfo
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- CN204280407U CN204280407U CN201420665717.3U CN201420665717U CN204280407U CN 204280407 U CN204280407 U CN 204280407U CN 201420665717 U CN201420665717 U CN 201420665717U CN 204280407 U CN204280407 U CN 204280407U
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Abstract
The utility model relates to a kind of tank line annex and leaks Self-plugging device.This device is the built-in gravity type boat davit one-way relief valves corresponding with storage tank annex or pneumatic type one-way relief valves.Built-in gravity type boat davit one-way relief valves, by after upset tank body 180 degree, relies on spool deadweight valve core sealed cover and sealing surface of seat to be compressed; Pneumatic type one-way relief valves fills nitrogen by the connection of high pressure gas pipeline road with the high-pressure gas pipe road direction valve body outside tank, promotes air chamber piston and is pressed into by taper valve core inside and outside valve body in medium channel 3, to realize the emergent shutoff of tank inside passage.When harmful influence storage tank annex lost efficacy generation dielectric leakage, adopted the utility model in order to block dielectric leakage, thus reached the object of urgent danger prevention of saving oneself fast, and avoided, owing to revealing the fire explosion formed, stopping loss and pollution.Setting like this effectively can promote the essential safety level of harmful influence mobile storage tank, reduces the difficulty of recovering of this type of accident.
Description
Technical field
The utility model relates to the extraordinary storage tank for harmful influence transport movement, belongs to the warehousing and transportation facilities device that a kind of essential safety possesses autonomous hedging function, relates to a kind of tank line annex in particular and leaks Self-plugging device.
Background technology
At present, the harmful influence such as CNPC, Sinopec production accumulating industry is increasingly flourishing, and the transport of harmful influence medium is mobile frequent, and the application of all kinds harmful influence tank truck, vehicle-mounted liquefied hydrocarbon fuel storage tank is more and more extensive.The accident that the tank connection annexes such as reservoir outlet, breathing valve, sprue leak is caused frequently to occur because pipe fitting, failsafe valve or collision, traffic accident etc. are unexpected, hard to guard against, as cannot effectively fast shut-off and closedown, thing must cause leaks so that forms fire or explosion accident in a large number.According to statistics; in numerous harmful influence accumulating accident or vehicle-mounted liquefied hydrocarbon fuel tank leak accident; its key problem is exactly that the suffers damage of storage tank is out of control; the serious consequence that leakage effectively cannot control and cause; this is also a difficult problem for this type of accident fire-fighting emergent disposal at present, and social negative effect highlights.The particularly diversified progress faster of new energy sources for automobile in recent years; compression natural gas, Liquefied Hydrocarbon are applied more and more as onboard fuel, and the application of these new-energy automobile vehicle-mounted storage tanks is also for the fire-fighting emergent disposal of this type of harmful influence tank leak proposes new technical need.Existing prevention and control harmful influence tank leak disposes the mode that means take additional shutoff more; as patent of invention: the strong magnetic device for plugging of CN1274988C and method for blocking thereof; it is outer coated mainly through carrying out pipeline accessories, to realize the leakage protection to leak point or device.The method of these external application passive type shutoff often judges the problems such as inaccurate or shutoff is not tight due to leak source and is difficult to effectively, fast tackle tank leak.For disposing effectively fast due to storage tank annex fault, the damaged leakage accident caused, answering center of gravity to examine harmful influence tank design manufacture and use situation closely, from tank inside structure design angle, improving the essential safety level of storage tank Leakage prevention.
The key of harmful influence mobile storage tank or vehicle-mounted storage tank pipeline accessories generation significant leakage accident lacks in existing tank design for emergent autonomous emergent means of closing, and is exactly specifically the avoiding device lacking tank inside.The safety of harmful influence tank design is too low, loses efficacy and just cannot tackle, and caused a fire-fighting difficult problem and social negative effect once annex.
Summary of the invention
In view of prior art Problems existing and defect, the utility model provides a kind of tank line annex to leak Self-plugging device.If arrange built-in gravity type boat davit one-way relief valves or built-in vapour-pressure type one-way relief valves at harmful influence tank inside medium channel mouth, the intact performance of himself keeps not easily damaged for a long time, the driving gravity of spool or indifferent gas promote to be safe and reliable, this will be compare actv. prevention and control hedging scheme, once accident occurs, its harmful influence storage tank self possesses self-saving ability, the feasible emergency preplan of a science has been laid in firefighters, also greatly will reduce fire-fighting to recover difficulty, overturn storage tank or nitrogen envelope note with stylizing, just effectively can block the multiple leak point of tank body, thus efficiently dispose for urgent danger prevention, make short work of and create possibility.
A kind of tank line annex of the present utility model leaks Self-plugging device, it is characterized in that: described Self-plugging device is built-in gravity type boat davit one-way relief valves, this safety valve comprises spherical valve core, taper valve core, inside and outside medium channel, external interface, for the first valve seat conical sealing surface with taper valve core fitted seal, for the second valve seat conical sealing surface and interior media flow equilibrium window with spherical valve core fitted seal, described spherical valve core is placed in valve channel center, the bottom of taper valve core is placed on the second valve seat conical sealing surface on spherical valve core, the top of taper valve core is placed on the first valve seat conical sealing surface, inside and outside medium channel is arranged on the first valve seat conical sealing surface, external interface is arranged on the body top on inside and outside medium channel, interior media flow equilibrium window is located in the middle part of the valve body of corresponding spherical valve core position.
Another kind of tank line annex described in the utility model leaks Self-plugging device, it is characterized in that: described Self-plugging device is built-in pneumatic formula one-way relief valves, this safety valve comprises spherical valve core, taper valve core, inside and outside medium channel, external interface, for the first valve seat conical sealing surface with taper valve core fitted seal, for the second valve seat conical sealing surface with spherical valve core fitted seal, interior media flow equilibrium window, air chamber piston and high pressure gas pipeline road, described spherical valve core is placed in valve channel center, the bottom of taper valve core is placed on the second valve seat conical sealing surface on spherical valve core, the top of taper valve core is placed on the first valve seat conical sealing surface, inside and outside medium channel is arranged on the first valve seat conical sealing surface, external interface is arranged on the body top on inside and outside medium channel, interior media flow equilibrium window is located in the middle part of the valve body of corresponding spherical valve core position, air chamber piston for lifting spherical valve core is placed on the below of spherical valve core, high pressure gas pipeline road level is arranged in the space under air chamber piston.
The utility model, in the external interface of described built-in gravity type boat davit one-way relief valves and built-in pneumatic formula one-way relief valves, has 90 degree of joints that commutate with inside and outside medium channel abutting joint.
Contact surface when taper valve core described in the utility model comprises taper valve core medium channel, spool conical sealing surface, spring stationary plane, spherical valve core and taper valve core opening and the righting cross end of taper valve core in valve base channel, this righting cross end is located in the valve base channel in the middle part of taper valve core, and contact surface during two spool openings is located at the bottom of taper valve core.
The beneficial effects of the utility model are: when harmful influence storage tank annex lost efficacy generation dielectric leakage, utilize gravity or fill nitrogen promotion tank internal check valve to check valve close voluntarily by self upset.Adopt the utility model in order to block dielectric leakage, thus reach the object of urgent danger prevention of saving oneself fast, avoid, owing to revealing the fire explosion formed, stopping loss and polluting.Setting like this effectively can promote the essential safety level of harmful influence mobile storage tank, reduces the difficulty of recovering of this type of accident.
Accompanying drawing explanation
Fig. 1 is built-in gravity type boat davit one-way relief valves section of structure of the present utility model;
Fig. 2 is built-in pneumatic formula one-way relief valves section of structure of the present utility model;
Fig. 3 is the birds-eye view of Fig. 1 or Fig. 2;
Fig. 4 is the built-in gravity type boat davit one-way relief valves section of structure of band commutation joint;
Fig. 5 is the built-in pneumatic formula one-way relief valves section of structure of band commutation joint;
Fig. 6 is the taper valve core section of structure amplified in Fig. 1, Fig. 2;
Fig. 7 is the birds-eye view of Fig. 6;
Fig. 8 is the taper valve core structural representation of the utility model embodiment;
Fig. 9 is the birds-eye view of Fig. 8;
Figure 10 is the position view that built-in gravity type boat davit one-way relief valves of the present utility model is welded on tank inside;
Figure 11 is the position view that built-in pneumatic formula one-way relief valves of the present utility model is welded on tank inside.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail:
With reference to Fig. 1 and Fig. 3, Self-plugging device of the present utility model is built-in gravity type boat davit one-way relief valves, this safety valve comprises spherical valve core 1, taper valve core 2, inside and outside medium channel 3, external interface 4, for the first valve seat conical sealing surface 5 with taper valve core 2 fitted seal, for the second valve seat conical sealing surface 6 and interior media flow equilibrium window 7 with spherical valve core 1 fitted seal, spherical valve core 1 is placed in valve channel center, the bottom of taper valve core 2 is placed on the second valve seat conical sealing surface 6 on spherical valve core 1, the top of taper valve core 2 is placed on the first valve seat conical sealing surface 5, inside and outside medium channel 3 is arranged on the first valve seat conical sealing surface 5, external interface 4 is arranged on the body top on inside and outside medium channel 3, interior media flow equilibrium window 7 is located in the middle part of the valve body of corresponding spherical valve core 1 position.
With reference to Fig. 2 and Fig. 3, another kind of Self-plugging device of the present utility model is built-in pneumatic formula one-way relief valves, this safety valve comprises spherical valve core 1, taper valve core 2, inside and outside medium channel 3, external interface 4, for the first valve seat conical sealing surface 5 mated with taper valve core 2, for the second valve seat conical sealing surface 6 with spherical valve core 1 fitted seal, interior media flow equilibrium window 7, air chamber piston 8 and high pressure gas pipeline road 9, described spherical valve core 1 is placed in valve channel center, the bottom of taper valve core 2 is placed on the second valve seat conical sealing surface 6 on spherical valve core 1, the top of taper valve core 2 is placed on the first valve seat conical sealing surface 5, inside and outside medium channel 3 is arranged on the first valve seat conical sealing surface 5, external interface 4 is arranged on the body top on inside and outside medium channel 3, interior media flow equilibrium window 7 is located in the middle part of the valve body of corresponding spherical valve core 1 position, air chamber piston 8 for lifting spherical valve core 1 is placed on the below of spherical valve core 1, high pressure gas pipeline road 9 level is arranged in the space under air chamber piston 8.
With reference to Fig. 4 and Fig. 5, the utility model, in the external interface 4 of built-in gravity type boat davit one-way relief valves and built-in pneumatic formula one-way relief valves, has 90 degree of joints 10 that commutate with inside and outside medium channel 3 abutting joint.Built-in gravity type boat davit one-way relief valves and pneumatic type one-way relief valves and 90 degree of splice combinations that commutate change the application example of channel direction, for the emergent safety precaution of the horizontal axis passage of harmful influence storage tank.
With reference to Fig. 6 and Fig. 7, contact surface 14 when taper valve core 2 of the present utility model comprises taper valve core medium channel 11, spool conical sealing surface 12, spring stationary plane 13, spherical valve core 1 and taper valve core 2 opening and the righting cross end 15 of taper valve core 2 in valve base channel, this righting cross end 15 is located in the valve base channel in the middle part of taper valve core 2, and the contact surface 14 during two spool openings is located at the bottom of taper valve core 2.Due to spring stationary plane 13 is designed to the face of cylinder, be intended to facilitate pocketed springs, when spherical valve core 1 is near spring and when exerting pressure, taper valve core 2 is press seal face 5 under elastic force effect, spherical valve core 1 and the second valve seat conical sealing surface 6 compress and form double sealing, to obtain better sealing effectiveness simultaneously.
With reference to Fig. 8 and Fig. 9, in order to easy to process, taper valve core 2 can also be designed to plain taper version by the utility model in one embodiment.
With reference to Fig. 1 and Figure 10, general tank inside installs built-in gravity type boat davit one-way relief valves additional, its method is: built-in gravity type boat davit one-way relief valves is welded on respectively storage tank 16 each passage top inner, wherein: do not have the commutate built-in gravity type boat davit one-way relief valves of joint 10 of abutting joint 90 degree to be welded on the end face 17 of storage tank 16 inside with inside and outside medium channel 3; The built-in gravity type boat davit one-way relief valves of 90 degree of joints 10 that commutate is had to be welded on the cylinder 18 of storage tank 16 inside by the 90 degree of joints 10 that commutate docked with inside and outside medium channel 3 abutting joint, and the fiduciary level of sealing after checking its welding, then again composite assembly welding is carried out to storage tank 16; When storage tank 16 is in error state, and after confirming that external valve annex lost efficacy, tank body is rotated about axis 180 degree, the built-in gravity type boat davit one-way relief valves installed additional in storage tank 16 synchronously turns over turnback around horizontal axis, and spherical valve core 1 now relies on the gravitional force of self to be closed storage tank 16 inner passage by described taper valve core 2.
With reference to Fig. 2 and Figure 11, built-in pneumatic formula one-way relief valves is installed additional for realizing its large-scale tank car storage tank being rotated about axis difficulty, its method is: built-in pneumatic formula one-way relief valves is welded on respectively storage tank 16 each passage top inner, wherein: do not have the commutate built-in pneumatic formula one-way relief valves of joint 10 of abutting joint 90 degree to be welded on the end face 17 of storage tank 16 inside with inside and outside medium channel 3, the built-in pneumatic formula one-way relief valves of 90 degree of joints 10 that commutate is had to be welded on the cylinder 18 of storage tank 16 inside by the 90 degree of joints 10 that commutate docked with inside and outside medium channel 3 abutting joint, then the high pressure gas pipeline road 9 in two pneumatic type one-way relief valves is communicated with, and the fiduciary level checking it to seal, then again external welding in composite assembly is carried out to storage tank 16, when storage tank 16 is in error state, and after confirming that external valve annex lost efficacy, the high pressure gas pipeline road of built-in pneumatic formula one-way relief valves is communicated with the high-pressure gas pipeline outside storage tank, high pressure nitrogen hand valve on high-pressure gas pipeline outside storage tank 16 is opened, to the high pressure gas pipeline road 9 of built-in pneumatic formula one-way relief valves for nitrogen, built-in pneumatic formula one-way relief valves air chamber piston 8 cavity of resorption is interior by nitrogen supercharging instantaneously, promote air chamber piston 8 to move and lift spherical valve core 1 and the second valve seat conical sealing surface 6 compresses, while forming sealing, taper valve core 2 is pressed in inside and outside medium channel 3, to realize the emergent shutoff of storage tank 16 inner passage.
Indicated, marked in storage tank 16 outside of each built-in gravity type boat davit one-way relief valves corresponding or built-in pneumatic formula one-way relief valves, such as orientation, direction etc., to represent its technique orientation, and emergency operation explanation of annotating.Setting like this and indicating requires to be exactly in order to can accurate emergency cut-off respective channel after storage tank external valve, annex inefficacy, whichever passage generation leakage accident, only need same rescue method, that is exactly around horizontal axis by storage tank, drive built-in gravity type boat davit one-way relief valves synchronously to overturn, spool is fallen into the corresponding medium channel leaked.
Keep passage often to open under built-in gravity type boat davit one-way relief valves normal process state, meet design discharge and flow velocity, on the function of external valve and technological process without any impact, can say and perform practically no function, strictly say just a kind of emergency function of built-in deposit on each access road.
The utility model relates to a kind of autonomous hedging formula harmful influence storage tank, and it comprises storage tank body and annex and the built-in gravity type boat davit one-way relief valves corresponding with storage tank annex or built-in pneumatic formula one-way relief valves.The setting of built-in gravity type boat davit one-way relief valves can be used for emergency cut-off tank leak annex, pipeline respective channel.After upset tank body 180 degree, rely on spool deadweight valve core sealed cover and sealing surface of seat to be compressed, thus automatically close tank leak accessory passageway in tank interior.During built-in gravity type boat davit one-way relief valves normal process state, its spool relies on gravity to keep often opening, and built-in gravity type boat davit one-way relief valves is revolved turnback around its horizontal axis, automatically can block leakage, realize sealing surface secondary pressurized under the effect of internal pressure.The double acting of spool self gravitation and interior media pressure realizes the intact closedown of the built-in gravity type boat davit one-way relief valves arranged in harmful influence storage tank.From source, the inner medium that thoroughly blocks is gone out, and realizes effective control of medium in harmful influence storage tank.Medium only has harmful influence storage tank external valve passage of being allowed for access after this way valve passageway.Before existing external valve, namely install the ball-and-seat of an equal open area additional, be placed in tank inside, promote the security fiduciary level that the outside accident of these passage prevention and control causes dielectric leakage.
Under built-in gravity type boat davit one-way relief valves nominal situation condition of the present utility model, spherical valve core 1, taper valve core 2 rely on self gravitation to depart from the second valve seat conical sealing surface 6 and the first valve seat conical sealing surface 5 respectively, keep inside and outside medium channel 3 unimpeded, spacing in space in built-in gravity type boat davit one-way safety valve body, and keep free not jam.If state shown in Fig. 1 is inverted, spherical valve core 1 wherein and taper valve core 2 mate to compress with each self-corresponding second sealing surface of seat 6 and the second sealing surface of seat 5 and form two seals under the Action of Gravity Field of self, block inside and outside medium channel 3, spherical valve core 1 under this state and be provided with spring between taper valve core 2 hard contact does not occur, not interfering spherical sealing.
Realizing it for large-scale tank car storage tank is rotated about axis at need; pneumatic type one-way relief valves by high pressure gas pipeline road 9 be communicated with tank outside high-pressure gas pipe road direction valve body fill nitrogen; promoting air chamber piston 8 to be pressed into inside and outside valve body in medium channel 3 by taper valve core 2; to realize the emergent shutoff of tank inside passage; thus realize the intact closedown of Pneumatic unidirectional safety valve energy of setting in harmful influence large-scale tank car storage tank; thoroughly block medium from tank inside to go out, realize effective control of medium in harmful influence storage tank.
The built-in gravity arranged in harmful influence storage tank or the matched design of its spool of pneumatic type one-way relief valves and passage meet tank inside safety, and independent flexible conversion of automatically closing often is opened and overturn to the superpressure dynamically lower passage that automatically keeps.
The built-in gravity arranged in harmful influence storage tank or pneumatic type one-way relief valves are applicable to various fluid medium.Its material and shape and version are not limit, and volume size is not limit, system pressure grade is not limit.According to chemical property and the physical property reasonable selection design plan of channel diameter and fluid medium.
Claims (5)
1. a tank line annex leaks Self-plugging device, it is characterized in that: described Self-plugging device is built-in gravity type boat davit one-way relief valves, this safety valve comprises spherical valve core (1), taper valve core (2), inside and outside medium channel (3), external interface (4), for the first valve seat conical sealing surface (5) with taper valve core (2) fitted seal, for the second valve seat conical sealing surface (6) and interior media flow equilibrium window (7) with spherical valve core (1) fitted seal, described spherical valve core (1) is placed in valve channel center, the bottom of taper valve core (2) is placed on the second valve seat conical sealing surface (6) on spherical valve core (1), the top of taper valve core (2) is placed on the first valve seat conical sealing surface (5), inside and outside medium channel (3) is arranged on the first valve seat conical sealing surface (5), external interface (4) is arranged on the body top on inside and outside medium channel (3), interior media flow equilibrium window (7) is located in the middle part of the valve body of corresponding spherical valve core (1) position.
2.. a kind of tank line annex according to claim 1 leaks Self-plugging device, it is characterized in that: in the external interface (4) of described built-in gravity type boat davit one-way relief valves having 90 degree of joints (10) that commutate with inside and outside medium channel (3) abutting joint.
3. a tank line annex leaks Self-plugging device, it is characterized in that: described Self-plugging device is built-in pneumatic formula one-way relief valves, this safety valve comprises spherical valve core (1), taper valve core (2), inside and outside medium channel (3), external interface (4), for the first valve seat conical sealing surface (5) with taper valve core (2) fitted seal, for the second valve seat conical sealing surface (6) with spherical valve core (1) fitted seal, interior media flow equilibrium window (7), air chamber piston (8) and high pressure gas pipeline road (9), described spherical valve core (1) is placed in valve channel center, the bottom of taper valve core (2) is placed on the second valve seat conical sealing surface (6) on spherical valve core (1), the top of taper valve core (2) is placed on the first valve seat conical sealing surface (5), inside and outside medium channel (3) is arranged on the first valve seat conical sealing surface (5), external interface (4) is arranged on the body top on inside and outside medium channel (3), interior media flow equilibrium window (7) is located in the middle part of the valve body of corresponding spherical valve core (1) position, air chamber piston (8) for lifting spherical valve core (1) is placed on the below of spherical valve core (1), high pressure gas pipeline road (9) level is arranged in the space under air chamber piston (8).
4. a kind of tank line annex according to claim 3 leaks Self-plugging device, it is characterized in that: in the external interface (4) of described built-in pneumatic formula one-way relief valves having 90 degree of joints (10) that commutate with inside and outside medium channel (3) abutting joint.
5. leak Self-plugging device according to claim 1 or a kind of tank line annex according to claim 3, it is characterized in that: described taper valve core (2) comprises taper valve core medium channel (11), spool conical sealing surface (12), spring stationary plane (13), contact surface (14) when spherical valve core (1) and taper valve core (2) opening and taper valve core (2) the righting cross end (15) in valve base channel, this righting cross end (15) is located in the valve base channel at taper valve core (2) middle part, contact surface (14) during two spool openings is located at the bottom of taper valve core (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420665717.3U CN204280407U (en) | 2014-11-10 | 2014-11-10 | A kind of tank line annex leaks Self-plugging device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420665717.3U CN204280407U (en) | 2014-11-10 | 2014-11-10 | A kind of tank line annex leaks Self-plugging device |
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| CN204280407U true CN204280407U (en) | 2015-04-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355010A (en) * | 2014-11-10 | 2015-02-18 | 公安部天津消防研究所 | Leakage self-plugging method and device for storage tank pipeline accessory |
-
2014
- 2014-11-10 CN CN201420665717.3U patent/CN204280407U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355010A (en) * | 2014-11-10 | 2015-02-18 | 公安部天津消防研究所 | Leakage self-plugging method and device for storage tank pipeline accessory |
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Address after: No. 110 Wei Jinnan Road, Nankai District, Tianjin Patentee after: Tianjin Institute of Fire Protection, Ministry of Emergency Management Address before: No. 110 Wei Jinnan Road, Nankai District, Tianjin Patentee before: Tianjin Fire Fighting Inst., Ministry of Public Security |