CN104085628A - Hazardous chemical storage tank capable of autonomous risk avoidance - Google Patents
Hazardous chemical storage tank capable of autonomous risk avoidance Download PDFInfo
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- CN104085628A CN104085628A CN201410244760.7A CN201410244760A CN104085628A CN 104085628 A CN104085628 A CN 104085628A CN 201410244760 A CN201410244760 A CN 201410244760A CN 104085628 A CN104085628 A CN 104085628A
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- storage tank
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Abstract
The invention discloses a hazardous chemical storage tank capable of autonomous risk avoidance. The hazardous chemical storage tank comprises a storage tank body, accessories, and built-in gravity type one-way safety valves corresponding to the storage tank accessories. The built-in gravity type one-way safety valves are arranged for the emergency closing of corresponding passages; after the hazardous chemical storage tank is rotated by 180 degrees, a valve core sealing surface can be tightly pressed against a valve seat sealing surface simply due to the dead load of a valve core, so that the flow can be automatically closed; the valve core of each built-in gravity type one-way safety valve at a normal technical state is kept normally open due to the gravity; after the hazardous chemical storage tank is rotated by 180 degrees around the horizontal axis thereof, the built-in gravity type one-way safety valves can automatically stop leakage. The hazardous chemical storage tank has the advantages that when medium leakage occurs due to a failure of the accessories of the hazardous chemical storage tank, the hazardous chemical storage tank can be overturned to stop the medium leakage through one-way closing of the passages, so as to achieve the purposes of rapid self rescue and emergency risk avoidance, prevent fires and explosions, and eliminates damage and pollution. Therefore, the intrinsic safety level of transportable hazardous chemical storage tanks can be improved, and the rescue difficulty for such accidents can be reduced.
Description
Technical field
The present invention relates to autonomous hedging formula dangerization product storage tank, in particular, the present invention relates to a kind ofly for the mobile extraordinary storage tank of danger product transports, belong to essential safety and possess the warehousing and transportation facilities of autonomous hedging function.
Background technology
The dangerization product production accumulating industries such as current CNPC, Sinopec are increasingly flourishing; dangerization product medium moves frequently; accidental release accident remains incessant after repeated prohibition, hard to guard against; the annex that numerous its key problems of danger product accumulating accident are exactly storage tank damages out of control; leakage cannot effectively be controlled and cause serious consequence; a Ye Shi world fire-fighting difficult problem, social negative effect highlights.Particularly the diversified process of new energy sources for automobile is accelerated in recent years, compression natural gas, liquefied gas storage is combined paces and is raised speed with automobile, strengthen the difficulty of dangerization product securities, fire-fighting arduous task, pressure multiplier, the means of existing prevention and control dangerization product tank leak are difficult to successfully manage, development highlights with the contradiction of prevention and control, medium is excessive feels frustrated, environmental pollution is inevitable, for reducing the commutation thinking that must look for another way of the difficulty of recovering of dangerization product tank leak, present situation is manufactured and used to center of gravity close examination dangerization product tank design, innovation radical cure hidden danger is imperative, shoulder heavy responsibilities.
The inventor thinks, the key of dangerization product mobile storage tank generation significant leakage accident is in existing design, to lack the emergent means of independently closing for emergent, and definite saying is exactly the avoiding device that lacks tank inside.The safety of dangerization product tank design is too low, just cannot tackle once annex loses efficacy, and causes a fire-fighting difficult problem and social negative effect.If built-in gravity type boat davit one-way relief valves is set at dangerization product tank inside medium channel mouth; it is not easily damaged that the intact performance of himself can keep for a long time; the driving gravity of spool is failure-free; this will be comparison actv. prevention and control hedging scheme; once accident occurs; its dangerization product storage tank self possesses self-saving ability; lay in an emergency preplan that science is feasible to firefighters; also will greatly reduce the fire-fighting difficulty of recovering, the overturn storage tank, blocking-up of stylizing leaks that efficiently dispose, make short work of creation for urgent danger prevention possible.
Summary of the invention
Object of the present invention, solves exactly the problem existing in the above existing mobile storage tank designing technique of dangerization product accumulating industry, and a kind of effective technology scheme of effecting a radical cure the sector warehousing and transportation facilities inherently safe hidden danger is provided for this reason.
Technical scheme of the present invention is:
The autonomous hedging formula of described one dangerization product storage tank, its structure comprises storage tank body and annex and the built-in gravity type boat davit one-way relief valves corresponding with storage tank annex, the setting of described built-in gravity type boat davit one-way relief valves is exactly for emergency cut-off respective channel, synchronously turning over turnback in company with described invention only relies on spool deadweight that valve core sealed cover and sealing surface of seat are compressed to automatic closing flow path, when described built-in gravity type boat davit one-way relief valves normal process state, its spool relies on gravity to keep often opening, by described invention around its horizontal axis Rotate 180 degree, its built-in gravity type boat davit one-way relief valves can be blocked leakage automatically, it is the technical essential of described invention, advantage of the present invention is: can be in the time that the inefficacy of dangerization product storage tank annex causes dielectric leakage, thereby the blocking-up dielectric leakage that self overturns is reached to the object of the urgent danger prevention of saving oneself fast, avoid fire explosion, stop loss and pollute, so arrange and will promote the essential safety level of dangerization product mobile storage tank, the difficulty of recovering of reduction accident.
Described built-in gravity type boat davit one-way relief valves is arranged on corresponding passage, and medium only has through the dangerization product storage tank external valve passage of being allowed for access after this one way channel.The ball-and-seat that namely installed an equal open area before existing external valve additional, is placed in tank inside, promotes the outside accident of this passage prevention and control and cause the security fiduciary level of dielectric leakage.
Described built-in gravity type boat davit one-way relief valves, normal process state keeps passage often to open, meet design discharge and flow velocity, function on external valve and technological process, without any impact, can be said and perform practically no function, and will be strictly a kind of emergency function of built-in deposit on each access road.
The unique energy of startup of built-in its emergency function of gravity type boat davit one-way relief valves arranging in described danger product storage tank is the gravitional force of its spool self.That is to say, normal process state at ordinary times, described spool is opened medium channel completely under self gravitation effect; When storage tank tank body is in the time that axis rotation 180 is spent; in danger product storage tank wherein, set built-in gravity type boat davit one-way relief valves is synchronously turned over turnback; at this moment spool relies on the gravitional force of self that inner passage is closed, and under the effect of internal pressure, realizes sealing surface secondary pressurized.The double acting of spool self gravitation and interior media pressure realizes intact the closing from the thorough blocking-up in inside, source medium of the built-in gravity type boat davit one-way relief valves arranging in dangerization product storage tank and goes out, and realizes effective control of medium in dangerization product storage tank.
Built-in its spool of gravity type boat davit one-way relief valves arranging in described danger product storage tank and the design of the coupling of passage meet tank inside safety, and superpressure is the lower passage independent flexible conversion of automatically closing of often opening and overturn that automatically keeps dynamically.
The material of the built-in gravity type boat davit one-way relief valves arranging in described danger product storage tank and shape and form are not limit, according to the chemical property of channel diameter, medium and physical property reasonable selection design plan.
Orientation that built-in its interior welds of gravity type boat davit one-way relief valves arranging in described danger product storage tank is fixedly installed, direction are in the outside need emergency operation explanation that accurately obviously indicates and annotate.
Brief description of the drawings
Accompanying drawing is that the present invention arranges supporting structural representation;
Brief description of the drawings
Fig. 1 is the structural representation of built-in gravity type boat davit one-way relief valves of the present invention.
Fig. 2 is the right elevation of Fig. 1,
fig. 3 is the birds-eye view of Fig. 1.
Fig. 4 is the structural representation that built-in gravity type boat davit one-way relief valves of the present invention and 90 degree joints close.
Fig. 5 is the right elevation of Fig. 4.
Fig. 6 is conical valve cored structure schematic diagram.
Fig. 7 is the birds-eye view of Fig. 6.
Fig. 8 is the structural representation of described invention.
Fig. 9 is the basic structure schematic diagram of conical surface spool.
Figure 10 is the right elevation of Fig. 9.
Figure 11 is the birds-eye view of Fig. 9.
Mark in Fig. 1: the inside and outside medium channel 4-external interface 5-valve seat conical sealing surface 6-valve seat conical sealing surface 7-interior media flow equilibrium window of 1-spherical valve core 2-taper valve core 3-
Mark in Fig. 2: nothing
Mark in Fig. 4, Fig. 5; 90 degree that 8-docks with built-in gravity type boat davit one-way relief valves are to joint
Mark in Fig. 6, Fig. 7; 9-taper valve core medium channel 10-spool conical sealing surface 11-presses bearing surface 12-two spool opening contact surface 13-taper valve cores righting cross end in valve base channel
The welding of the built-in gravity type boat davit one-way relief valves of mark in Fig. 8: 14-and the storage tank face of cylinder arranges the built-in gravity type boat davit one-way relief valves of invention body 16-described in state 15-and welds with storage tank end face the state that arranges
Mark in Fig. 9, Figure 10, Figure 11: 10-taper valve core basic structure form
Concrete cooperation and embodiment
For the present invention is more easily understood, below in conjunction with accompanying drawing and embodiment, technical scheme of the present invention is described in detail.
With reference to accompanying drawing 1, built-in gravity type boat davit one-way relief valves of the present invention, is processed with inside and outside medium channel 3 and the valve seat conical sealing surface 5 for mating with taper valve core 2 in body channel, is processed with valve seat conical sealing surface 6 for coordinating and implement sealing with spherical valve core 1.The spool 1 and 2 of described built-in gravity type boat davit one-way relief valves, under nominal situation condition, rely on self gravitation to depart from and keep this medium channel 3 unimpeded with valve seat 6 and 5 respectively, the spacing and free not jam of maintenance in space in described built-in gravity type boat davit one-way safety valve body.If Fig. 1 state is inverted, spherical valve core 1 wherein and taper valve core 2 mate compression and form two seals under the Action of Gravity Field of self with each self-corresponding sealing surface of seat 6 and 5, the inside and outside medium channel 3 of blocking-up, under this state, spherical valve core 1 and taper valve core 2 do not come in contact interference.
With reference to accompanying drawing 4 and accompanying drawing 5, built-in gravity type boat davit one-way relief valves of the present invention and 90 degree commutation splice combinations change the application example of channel direction, for the emergent safety precaution of the horizontal axis passage of danger product storage tank;
With reference to accompanying drawing 8, built-in gravity type boat davit one-way relief valves of the present invention is applicable to liquid phase medium and is also applicable to meteorological medium.
Technology implementation process and principle thereof
With reference to accompanying drawing 8, accompanying drawing 1, accompanying drawing 4; the autonomous hedging formula of described one dangerization product storage tank; its inner each passage top has installed gravity type boat davit one-way relief valves additional; this is arranged on described invention and makes before all prefabricated fiduciary levels that completes and check its sealing of corresponding welding; then composite assembly welding; outside in described invention, corresponding each built-in gravity type boat davit one-way relief valves is implemented accurately to indicate, mark, represents to know its technique orientation.So arrange and indicate that to require be exactly for accurate emergency cut-off respective channel after described invention external valve, annex inefficacy, whichever passage generation leakage accident, only need same rescue method, that rotates described invention exactly around horizontal axis, drive built-in gravity type boat davit one-way relief valves synchronously to overturn, spool is fallen into the corresponding medium channel leaking.Turn over built-in gravity type boat davit one-way relief valves described after turnback only rely on spool deadweight valve core sealed cover and sealing surface of seat compacted and automatically close medium flow process, reach the object of urgent danger prevention.When the built-in gravity type boat davit one-way relief valves of major part normal process state in described invention, its spool relies on gravity to keep often opening, by described invention around its horizontal axis Rotate 180 degree, its built-in gravity type boat davit one-way relief valves can rely on spool gravity automatically to block leakage, is the technical essential of described invention.
The autonomous hedging formula of one of the present invention dangerization product storage tank, according to the physicochemical characteristics of medium, its selection is not limit, version is not limit, volume size is not limit, system pressure grade is not limit.
With reference to drawings and Examples, autonomous hedging formula dangerization product storage tank of the present invention is described above, this description is schematically, does not have restricted.For those of ordinary skill in the field, under the enlightenment of above-mentioned explanation, in order to realize same technical purpose, can also carry out some adjustment or change to structure of the present invention, thereby form new technical scheme.Special needs to be pointed out is, only otherwise depart from invention aim of the present invention, all apparent amendments or technology essential factor be equal to replacement, within being all included in protection scope of the present invention.
Claims (6)
1. autonomous hedging formula dangerization product storage tank, its formation comprises storage tank body, storage tank annex and the built-in gravity type boat davit one-way relief valves corresponding with storage tank annex, described storage tank body and external accessory thereof are identical with existing danger product tank design technical standard, its selection, Selection and Design standard, design parameters meets existing GB completely, described invention is exactly in existing design basis, weld in advance built-in gravity type boat davit one-way relief valves is set at the former top of each passage, described built-in gravity type boat davit one-way relief valves relies on spool self gravitation usually to open and perform practically no function away from sealing surface of seat maintenance passage exactly, flip upside down and rely on spool self gravitation to compress the urgent danger prevention of sealing surface of seat maintenance carrier frequency channel break, it is exactly to close corresponding leakage path for the corresponding built-in gravity type boat davit one-way relief valves that flips upside down under the emergency state that innovation arranges object, close power and only rely on the deadweight of spool, by described invention around its horizontal axis Rotate 180 degree, its built-in gravity type boat davit one-way relief valves can be closed corresponding faulty channel blocking-up leakage, when described built-in gravity type boat davit one-way relief valves normal process state, its spool relies on gravity to keep often opening, upset 180 degree valve core sealed covers and sealing surface of seat rely on gravity-pressing blocking-up flow process, advantage of the present invention is: can be in the time of dangerization product storage tank annex inefficacy dielectric leakage, thereby rely on spool self gravitation closing passage blocking-up dielectric leakage to reach the object of the urgent danger prevention of saving oneself fast through self overturning, avoid fire explosion, stop loss and pollute, so arrange and will promote the essential safety level of dangerization product mobile storage tank, the difficulty of recovering of reduction accident.
2. autonomous hedging formula dangerization product storage tank according to claim 1, is characterized in that, described built-in gravity type boat davit one-way relief valves is distributed in each passage top and is welded on the inwall of described invention.
3. autonomous hedging formula dangerization product storage tank according to claim 1, is characterized in that, described built-in gravity type boat davit one-way relief valves version is various.
4. autonomous hedging formula dangerization product storage tank according to claim 1, is characterized in that, the spool setting of described built-in gravity type boat davit one-way relief valves can not promoted to affect flow near sealing surface by medium under reasonable conditions.
5. autonomous hedging formula dangerization product storage tank according to claim 1, is characterized in that, described built-in gravity type boat davit one-way relief valves has good resistance to chemical corrosion, does not need maintaining.
6. autonomous hedging formula dangerization product storage tank according to claim 1, is characterized in that, installation form meets in emergency circumstances and can people operate for release has also driven the rotation of described invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410244760.7A CN104085628A (en) | 2014-07-15 | 2014-07-15 | Hazardous chemical storage tank capable of autonomous risk avoidance |
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| CN201410244760.7A CN104085628A (en) | 2014-07-15 | 2014-07-15 | Hazardous chemical storage tank capable of autonomous risk avoidance |
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| CN104085628A true CN104085628A (en) | 2014-10-08 |
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| CN201410244760.7A Pending CN104085628A (en) | 2014-07-15 | 2014-07-15 | Hazardous chemical storage tank capable of autonomous risk avoidance |
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Cited By (10)
| 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 |
| CN104724416A (en) * | 2015-04-04 | 2015-06-24 | 大连康维科技有限公司 | Tank truck safe breathing system and tank truck tank body |
| CN104787435A (en) * | 2015-04-30 | 2015-07-22 | 中国石油大学(华东) | Autonomous anti-pollution logistics container for hazardous chemical substances |
| CN104847931A (en) * | 2015-05-05 | 2015-08-19 | 朱志强 | Internal safety valve of storage tank |
| CN105402458A (en) * | 2015-12-16 | 2016-03-16 | 朱志强 | Upright-opening inverted-closing type storing tank |
| WO2016173355A1 (en) * | 2015-04-30 | 2016-11-03 | 中国石油大学(华东) | Safety storage container for chemicals |
| CN107339540A (en) * | 2017-07-17 | 2017-11-10 | 朱志强 | A kind of gravity reduction formula pipeline emergency set |
| CN110657270A (en) * | 2019-10-24 | 2020-01-07 | 应急管理部天津消防研究所 | Built-in gravity type safety valve for mobile liquid ammonia liquid chlorine bottle tank and use method |
| CN110794880A (en) * | 2019-09-20 | 2020-02-14 | 浙江镇石物流有限公司 | Temporary rescue method for dangerous chemical transport vehicle after leakage |
| CN114127467A (en) * | 2019-07-26 | 2022-03-01 | 宝马股份公司 | Pressure vessel device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2682256Y (en) * | 2004-02-23 | 2005-03-02 | 戚征宇 | Non-return plug valve |
| CN200975551Y (en) * | 2006-12-08 | 2007-11-14 | 比亚迪股份有限公司 | Gravity valve |
| CN201240461Y (en) * | 2008-07-04 | 2009-05-20 | 厦门信源环保科技有限公司 | Oil overflow cut-off valve |
| CN201428828Y (en) * | 2009-05-27 | 2010-03-24 | 宁波合力机泵有限公司 | Ball valve |
| CN201748002U (en) * | 2010-08-31 | 2011-02-16 | 朱志强 | Emergency rapid-blocking valve |
| CN202012648U (en) * | 2011-04-02 | 2011-10-19 | 西安长庆科技工程有限责任公司 | Low-pressure control release valve |
| CN203412684U (en) * | 2013-06-25 | 2014-01-29 | 苏州圆能动力科技有限公司 | Anti-dumping valve |
-
2014
- 2014-07-15 CN CN201410244760.7A patent/CN104085628A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2682256Y (en) * | 2004-02-23 | 2005-03-02 | 戚征宇 | Non-return plug valve |
| CN200975551Y (en) * | 2006-12-08 | 2007-11-14 | 比亚迪股份有限公司 | Gravity valve |
| CN201240461Y (en) * | 2008-07-04 | 2009-05-20 | 厦门信源环保科技有限公司 | Oil overflow cut-off valve |
| CN201428828Y (en) * | 2009-05-27 | 2010-03-24 | 宁波合力机泵有限公司 | Ball valve |
| CN201748002U (en) * | 2010-08-31 | 2011-02-16 | 朱志强 | Emergency rapid-blocking valve |
| CN202012648U (en) * | 2011-04-02 | 2011-10-19 | 西安长庆科技工程有限责任公司 | Low-pressure control release valve |
| CN203412684U (en) * | 2013-06-25 | 2014-01-29 | 苏州圆能动力科技有限公司 | Anti-dumping valve |
Cited By (16)
| 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 |
| CN104724416A (en) * | 2015-04-04 | 2015-06-24 | 大连康维科技有限公司 | Tank truck safe breathing system and tank truck tank body |
| US10189627B2 (en) | 2015-04-30 | 2019-01-29 | China University Of Petroleum (East China) | Autonomous anti-pollution liquid container for isotope analysing of earth science area |
| CN104787435A (en) * | 2015-04-30 | 2015-07-22 | 中国石油大学(华东) | Autonomous anti-pollution logistics container for hazardous chemical substances |
| CN104787435B (en) * | 2015-04-30 | 2016-03-02 | 中国石油大学(华东) | The anti-pollution harmful influence platform of autonomous type |
| WO2016173354A1 (en) * | 2015-04-30 | 2016-11-03 | 中国石油大学(华东) | Autonomous anti-pollution hazardous chemical substance logistics container |
| WO2016173355A1 (en) * | 2015-04-30 | 2016-11-03 | 中国石油大学(华东) | Safety storage container for chemicals |
| CN104847931A (en) * | 2015-05-05 | 2015-08-19 | 朱志强 | Internal safety valve of storage tank |
| CN105402458A (en) * | 2015-12-16 | 2016-03-16 | 朱志强 | Upright-opening inverted-closing type storing tank |
| CN105402458B (en) * | 2015-12-16 | 2017-11-17 | 朱志强 | A kind of just logical bankruptcy type storage tank |
| CN107339540A (en) * | 2017-07-17 | 2017-11-10 | 朱志强 | A kind of gravity reduction formula pipeline emergency set |
| CN114127467A (en) * | 2019-07-26 | 2022-03-01 | 宝马股份公司 | Pressure vessel device |
| CN110794880A (en) * | 2019-09-20 | 2020-02-14 | 浙江镇石物流有限公司 | Temporary rescue method for dangerous chemical transport vehicle after leakage |
| CN110794880B (en) * | 2019-09-20 | 2022-10-21 | 浙江镇石物流有限公司 | Temporary rescue method for dangerous chemical transport vehicle after leakage |
| CN110657270A (en) * | 2019-10-24 | 2020-01-07 | 应急管理部天津消防研究所 | Built-in gravity type safety valve for mobile liquid ammonia liquid chlorine bottle tank and use method |
| CN110657270B (en) * | 2019-10-24 | 2024-04-02 | 应急管理部天津消防研究所 | Built-in gravity type safety valve for movable liquid ammonia liquid chlorine bottle and use method |
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Application publication date: 20141008 |