CN101254848A - Vertical tank capable of real-time monitoring leakage of tank bottom - Google Patents
Vertical tank capable of real-time monitoring leakage of tank bottom Download PDFInfo
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- CN101254848A CN101254848A CNA2008100604523A CN200810060452A CN101254848A CN 101254848 A CN101254848 A CN 101254848A CN A2008100604523 A CNA2008100604523 A CN A2008100604523A CN 200810060452 A CN200810060452 A CN 200810060452A CN 101254848 A CN101254848 A CN 101254848A
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Abstract
The invention relates to a vertical storage tank capable of monitoring tank bottom leakage in real-time. The invention aims at providing a storage tank having pressure bearing and real-time monitoring functions with simple and convenient operation and lower cost. The vertical storage tank comprises a tank body and a tank bottom, wherein the tank bottom is laminated by an upper layer plate and a lower layer plate, the surroundings of the two layer plates are all sealed and fixedly connected to form a hollow cavity between the surfaces of the two layer plates; the tank bottom is also provided thereon with a connecting pipe communicated with the hollow cavity; a gas element analyzer is arranged inside the connecting pipe, and the data line of the gas element analyzer is communicated with a monitoring system. The connecting pipe is also provided thereon with a suction pump. The diameter of the lower layer plate is slightly larger than that of the upper layer plate, thereby facilitating welding the surroundings of the upper and the lower layer plates.
Description
Technical field
The present invention relates to a kind of vertical storage tank, the especially a kind of vertical storage tank that can realize real-time monitoring to leakage at the bottom of the jar.
Background technology
Vertical storage tank is the important tool of saving crude oil, middle oil, finished oil, petroleum chemicals, all gases and petrochemical material.The medium of character such as its interior many storages are inflammable and explosive, volatility, owing under natural environment and liquid level change condition, move all the year round, defectives such as wearing out inevitably appears in the vertical storage tank material, corrosion, the corrosion failure, the cracks can spread that cause of chemical corrosion in the environment and electrochemical corrosion and break etc. particularly, cause the decline of vertical storage tank degree of safety, anti-sudden weight bearing power descends, and therefore very easily causes dielectric leakage, causes serious economy loss and environment and ecological pollution.Methyl isocyanate tank leak took place in India Bhopal city as on December 3rd, 1984, have 2500 surplus the people die, ten thousand people poison surplus in the of 20; Blast accident takes place because of leaking in the large-scale oil depot of Paris, FRA in 1991, causes 9 fire fighters to die.Corrosion is to cause one of major reason of vertical storage tank potential safety hazard, and much more the tank bottom corrosion failure is to see with the most serious; Show that according to pertinent data in the crude oil storage tank stoppage in transit accident that causes of corrosion leakage of oil, at the bottom of the easiest position that is damaged and problem takes place was jar, the tank bottom corrosion accounted for 76.4% more than.
Be to guarantee the vertical storage tank safe handling, must regularly stop production to open and jar check, stop work, turn, clean, except that thoroughly, operation such as detection, detection time is long, is generally tens days even the several months detection service expenditure height.Common method comprises that mainly local ultrasonic thickness measurement, magnetic detect, Magnetic Flux Leakage Inspecting.These methods all have advantage and limitation separately.
Ultrasonic thickness measurement is to detect in the mode of sampling, and omission takes place easily.The removal preservative coat of need polishing during detection has increased labour intensity greatly; And need couplant, detection speed is extremely slow, and required detection time is long, and has certain blind area, near field; Testing result has certain subjectivity, the judgement that the shortage science is just simultaneously.Magnetic detects needs polishing, wastes time and energy, and labour intensity is big, and human element is more, and higher to the surface deficiency detection sensitivity, defective is more directly perceived.But can only detect the position of defective and the length on surface direction, can not detect depth of defect, detection sensitivity descends with depth of defect.The Magnetic Flux Leakage Inspecting technology detects with magnetic and compares the detection sensitivity height, and the reliability height can be to quantifying defects, and the detection efficiency height is not influenced by non-magnet material such as greasy dirt, and is convenient to operation, and the result is more objective, accurate.But it is applicable to ferromagnetic metal material, and is also powerless to the non-ferromagnetic metal material; And be difficult to distinguish depth of defect, can't judge that promptly defective is at upper surface or at lower surface, and instrument is relatively heavier.Above-mentioned 3 kinds of methods all are the offline inspection technology, can not detect vertical storage tank under the mode of operation, acoustic emission testing technology can be monitored by following in working order vertical storage tank, its great advantage be save time, laborsaving, can finish the detection task in the short period of time, the time of utilizing acoustic emission testing usually and being spent is about 1/5 of normal inspection.But equipment price costliness, detection and location precision also reach the acceptable level of people far away.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of improvement of vertical storage tank structure is provided, this storage tank should pressure-bearing have real-time monitoring and control again, and makes simple, safe and convenient to use.
The invention provides following technical scheme:
The vertical storage tank that leaks at the bottom of a kind of can monitor in real time jar comprises a tank body and a jar end, and the jar end of described vertical storage tank is formed by stacking with two-ply up and down, all is sealedly and fixedly connected around the two-ply, makes formation one cavity between the plate face of two-ply; Also be provided with an adapter, this adapter communicates with described cavity at described jar of the end; One gas element analyzer is set in the adapter, and the data line of this analyser is connected monitored control system again.
One air extracting pump also is set in the described adapter.
Described lower plywood diameter is than top plate slightly larger in diameter, with the welding around making things convenient between upper and lower plates.
Principle of work of the present invention is: if a jar end has leakage situation to produce, the molecule of institute's storage media promptly enters in the gas of cavity, and the gas element analyzer in taking over just can in time be discovered detection, and will detect data and send to monitored control system, for people's use of making a strategic decision.
The present invention can realize the vertical storage tank function of monitoring in real time, have rational in infrastructure, make simple, safe and convenient to use and advantage such as overall performance is stable.After though a jar bottom structure changes bilayer into, can increase its manufacturing cost to a certain extent, but the cycle that can prolong vertical storage tank stopping production cut out test also can significantly reduce stopping production and check the economic loss of being brought, the economic benefit of bringing in the use is considerably beyond the cost of transforming storage tank bottom, the safety control of vertical storage tank is brought great fundamental change, brings directly significant and indirect economic effect simultaneously.
Description of drawings:
Fig. 1 is the main TV structure scheme drawing of vertical storage tank.
Fig. 2 is that A-A among Fig. 1 is to the sectional structure scheme drawing.
Fig. 3 is the birds-eye view of one of double-deck jar bottom structure of vertical storage tank.
Fig. 4 is two a birds-eye view of double-deck jar of bottom structure of vertical storage tank.
The specific embodiment
As shown in the figure, this vertical storage tank comprises the tank body and jar end, the jar end of described vertical storage tank, be formed by stacking by two-ply up and down, all be sealedly and fixedly connected around the two-ply, make form between the plate face of two-ply a cavity (because of the space between the levels less, general several millimeter gets final product, and does not draw so omit among the figure); Because vertical storage tank bulky (diameter of tank body generally all has tens of rice and even rice up to a hundred), so in the two-ply at jar end, every laminate forms by polylith steel plate splicing and welding back that (solid line among Fig. 2 is the soldered of top plate 1, and dotted line is the soldered of lower plywood 2) also be provided with an adapter 3 on the described jar of end, this adapter communicates with described cavity; One gas element analyzer 5 is set in the adapter, and the data line of this analyser is drawn to connect monitored control system 6 (or data processing equipment).
Be made of top plate 1 and lower plywood 2 at the bottom of the vertical storage tank jar, the lower plywood diameter is than top plate slightly larger in diameter, and 50mm gets final product, and makes things convenient for welding all around between upper and lower plates.Top plate is still by existing vertical storage tank design regulation design, to satisfy requirement of strength.Lower plywood can be different with top plate thickness, get final product than top plate is slightly thin, and its effect can be the monitoring in real time of vertical storage tank base plate on the one hand possibility is provided, and can alleviate the corrosion of top plate lower surface on the other hand, and the lower plywood material can be identical with top plate.Simultaneously for to alleviate of the corrosion of ground external environment condition to lower plywood, also can select for use corrosion stability preferably material as lower plywood.At the suitable position (position as shown in Figure 3) of top plate or the suitable position (position as shown in Figure 4) of lower plywood security monitoring adapter 3 is installed, so that monitoring in real time; Opening-nozzle position in advance dress is welded in the suitable position of top plate or lower plywood, is drawn out to the position of handled easily, and makes itself and the communicating with each other of levels space, and whether system can leak so that monitor tank bottom regularly to extracting gases chemical examination between levels; If real the leakage can be accomplished automatic collection, discharging and warning processing.
Lower plywood welds by existing operating technique, and polishes weld reinforcement, be up to the standards finish after, carry out the construction welding of top plate.The design of top plate, construction must be satisfied relevant criterion design operating needs, and the weld seam of two-ply as far as possible suitably staggers, and to reduce stress concentration, the welding between each plate of top plate is not with till welding with lower plywood.In the appropriate location of top plate security monitoring is installed then and takes over, also require the polishing welding seams reinforcement simultaneously, take over and extraneous being communicated with to prevent security monitoring.To weld around the upper and lower laminate at last, to guarantee the space sealing between the two-ply.After all welding sequence is finished, on taking over, connect air extracting pump 4, gas element analyzer and monitored control system, realize real-time monitoring and control.
Said structure can be realized the automatic monitoring of safe condition under the vertical storage tank normal operating condition, if the vertical storage tank group then only need can realize monitoring to all vertical storage tanks once the cover real-time monitoring system, then convenient, economical.Gas element analyzer 5 just can determine whether to exist and leak by taking over the gas componant between the monitoring analysis levels; If real leakage also can be collected appointed positions, thus the environmental pollution that can at all avoid medium to leak outside causing and the various consequences that may cause; Regularly utilize between 4 pairs of levels of air extracting pump simultaneously and bleed, its space is kept dry, can alleviate the corrosion of top plate lower surface and lower plywood upper surface, prolong the round of visits of vertical storage tank.
Claims (3)
1, the vertical storage tank that leaks at the bottom of a kind of can monitor in real time jar, comprise the tank body and jar end, the jar end that it is characterized in that described vertical storage tank, be formed by stacking with two-ply up and down, all is sealedly and fixedly connected around the two-ply, makes formation one cavity between the plate face of two-ply; Also be provided with one at described jar of the end and take over (3), this adapter communicates with described cavity; One gas element analyzer (5) is set in the adapter, and this analyser data line is connected monitored control system (6) again.
2, the vertical storage tank that leaks at the bottom of a kind of can monitor in real time jar according to claim 1 is characterized in that also being provided with in the described adapter air extracting pump (4).
3, the vertical storage tank that leaks at the bottom of a kind of can monitor in real time jar according to claim 1 and 2 is characterized in that described lower plywood (2) diameter than top plate (1) slightly larger in diameter, with the welding around making things convenient between upper and lower plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100604523A CN101254848A (en) | 2008-04-10 | 2008-04-10 | Vertical tank capable of real-time monitoring leakage of tank bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100604523A CN101254848A (en) | 2008-04-10 | 2008-04-10 | Vertical tank capable of real-time monitoring leakage of tank bottom |
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| Publication Number | Publication Date |
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| CN101254848A true CN101254848A (en) | 2008-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100604523A Pending CN101254848A (en) | 2008-04-10 | 2008-04-10 | Vertical tank capable of real-time monitoring leakage of tank bottom |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785874A (en) * | 2012-08-16 | 2012-11-21 | 浙江省特种设备检验研究院 | Vertical storage tank leakage monitoring system with dual-layer tank bottom plate structure |
| CN104556265A (en) * | 2014-12-31 | 2015-04-29 | 陈森法 | Sewage treatment tank device with blowdown pipe |
| CN112591329A (en) * | 2020-12-23 | 2021-04-02 | 乐清市金宇科技有限公司 | Partition detection structure for vertical oil storage tank and construction method thereof |
| CN114524203A (en) * | 2020-10-31 | 2022-05-24 | 中国石油化工股份有限公司 | Vertical metal storage tank |
| CN116253075A (en) * | 2023-05-15 | 2023-06-13 | 常州远大新材料科技股份有限公司 | Cyanate ester mixture raw material storage tank for preparing plastering plate |
-
2008
- 2008-04-10 CN CNA2008100604523A patent/CN101254848A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785874A (en) * | 2012-08-16 | 2012-11-21 | 浙江省特种设备检验研究院 | Vertical storage tank leakage monitoring system with dual-layer tank bottom plate structure |
| CN102785874B (en) * | 2012-08-16 | 2013-12-25 | 浙江省特种设备检验研究院 | Vertical storage tank leakage monitoring system with dual-layer tank bottom plate structure |
| CN104556265A (en) * | 2014-12-31 | 2015-04-29 | 陈森法 | Sewage treatment tank device with blowdown pipe |
| CN104556265B (en) * | 2014-12-31 | 2016-06-08 | 陈森法 | A kind of sewage disposal tank arrangement with blow-off pipe |
| CN114524203A (en) * | 2020-10-31 | 2022-05-24 | 中国石油化工股份有限公司 | Vertical metal storage tank |
| CN112591329A (en) * | 2020-12-23 | 2021-04-02 | 乐清市金宇科技有限公司 | Partition detection structure for vertical oil storage tank and construction method thereof |
| CN116253075A (en) * | 2023-05-15 | 2023-06-13 | 常州远大新材料科技股份有限公司 | Cyanate ester mixture raw material storage tank for preparing plastering plate |
| CN116253075B (en) * | 2023-05-15 | 2023-07-07 | 常州远大新材料科技股份有限公司 | Cyanate ester mixture raw material storage tank for preparing plastering plate |
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Open date: 20080903 |