CN104792962A - Wireless monitoring device for concentration of flammable gas inside sealing ring of outer floating roof storage tank - Google Patents
Wireless monitoring device for concentration of flammable gas inside sealing ring of outer floating roof storage tank Download PDFInfo
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- CN104792962A CN104792962A CN201510121163.XA CN201510121163A CN104792962A CN 104792962 A CN104792962 A CN 104792962A CN 201510121163 A CN201510121163 A CN 201510121163A CN 104792962 A CN104792962 A CN 104792962A
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- monitoring device
- floating roof
- relay
- aspiration pump
- wireless monitoring
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Abstract
The invention discloses a wireless monitoring device for the concentration of flammable gas inside a sealing ring of an outer floating roof storage tank, specifically relates to the field of flammable gas concentration monitoring, and aims to provide the wireless monitoring device for the concentration of the flammable gas inside the sealing ring of the outer floating roof storage tank, wherein the wireless monitoring device can real-timely monitor the concentration of oil gas inside the sealing ring of the outer floating roof storage tank. The wireless monitoring device for the concentration of the flammable gas inside the sealing ring of the outer floating roof storage tank includes a sampling system, a detection system and a wireless transmission system; the sampling system includes a plurality of sampling pipelines, solenoid valves, an air extracting pump and a standby air extracting pump; the detection system includes a gas sensor; the wireless transmission system includes a GPRS antenna and a wireless relay device; each sampling pipeline is connected with one solenoid valve, the output ends of the solenoid valves are connected with the air extracting pump and the standby air extracting pump, the air extracting pump is electrically connected to a second relay, and the standby air extracting pump is electrically connected to a first relay.
Description
Technical field
The invention belongs to combustible gas concentration monitor field, be specifically related to a kind of External floating roof tank O-ring seal inner combustible gas concentration wireless monitoring device.
Background technology
During external floating roof tank design and construction, for ensureing that floating plate can move up and down neatly, the interval of certain distance can be kept between floating plate and tank skin, form the annular space of exposed pasta.For pasta exposed in isolated annular space and air contact, prevent oil gas volatilization, between floating plate and tank skin, packoff is set.At present, the packoff of domestic and international floating roof tank generally adopts the form of twice sealing.Once sealing is used for the direct capping of pasta, is topmost Sealing Device.Conventional once sealing mainly contains material filling type elastic soft sealing, liquid-filled soft seal and mechanical sealing three kinds of forms.In order to ensure better sealing effectiveness, outside once sealing, secondary seal being set, forming the protection to once sealing, and reducing oil and gas loss further.But, in the actual motion of storage tank, due to sedimentation, the distortion of tank body, or once sealing itself is aging, damage, and tank skin remains the reasons such as the lasting volatilization of oil product, often produce oil gas in space between storage tank first and second seals to gather, moiety concentrations even exceedes oil gas explosion lower limit.Now, run into the incendiary sources such as thunder and lightning, electrostatic, naked light, O-ring seal blast accident will be caused.Because being struck by lightning, the O-ring seal blast accident caused at home and abroad happens occasionally, and the safe operation of external floating roof tank in serious threat.
Therefore, to exceed standard initiation blast accident for preventing O-ring seal gas concentration, petrochemical industry General Requirements carries out periodic detection to O-ring seal combustible gas concentration, and the storage tank that combustible gas detectable concentration exceedes certain numerical value should search reason in time, and what satisfy the requirements should take measures to rectify and reform immediately.At present, the common practice of petroleum chemical enterprise carries the external floating roof tank sealed ring of Portable combustible gas detector by patrol officer regularly to carry out the detection of multi-point combustable gas concentration.The method wastes time and energy, and will pull open O-ring seal in testing process, causes the inner oil-gas escape of O-ring seal and concentration reduces.For this reason, invent a kind of monitoring device of radio detection O-ring seal combustible gas concentration, realize, to the real-time monitoring of O-ring seal combustible gas concentration, avoiding combustible gas concentration over-standard in time, thus preventing O-ring seal blast accident.
Summary of the invention
The object of the invention is to fire hidden danger outwardness always for the O-ring seal of External floating roof tank, existing O-ring seal combustible gas monitoring method wastes time and energy and inaccurate deficiency, provides a kind of a kind of External floating roof tank O-ring seal inner combustible gas concentration wireless monitoring device can monitoring the inner gas concentration of External floating roof tank O-ring seal.
The present invention adopts following technical scheme:
A kind of External floating roof tank O-ring seal inner combustible gas concentration wireless monitoring device, comprise sampling system, detection system and wireless transmitting system, described sampling system comprises many sample lines, solenoid valve, aspiration pump and aspiration pump for subsequent use, described detection system comprises gas sensor, and described wireless transmitting system comprises GPRS antenna and wireless relay apparatus; Described every bar sample lines connects a solenoid valve, the output terminal of described solenoid valve connects aspiration pump and aspiration pump for subsequent use, described aspiration pump is electrically connected the second relay, described aspiration pump for subsequent use is electrically connected the first relay, described solenoid valve, the first relay, the second relay and gas sensor are electrically connected control check-out console respectively, described aspiration pump is connected gas sensor with delivery side of pump of bleeding for subsequent use, and described gas sensor connects exhaust port.
Preferably, described solenoid valve, the first relay, the second relay and control check-out console are powered by intrinsic safe battery group.
Preferably, described intrinsic safe battery group is 12V.
Preferably, described control check-out console is provided with GPRS antenna, and the inside of described control check-out console is provided with wireless relay apparatus.
Preferably, described sample lines is low adsorption sampling pipeline.
Preferably, described aspiration pump and aspiration pump for subsequent use are explosion-proof extraction pump.
Preferably, the inlet end of described sample lines is positioned in same air inlet port.
The beneficial effect that the present invention has is: the oil gas being extracted O-ring seal inside by sample lines, through solenoid valve, oil gas is passed to gas sensor by pipeline, the electrical signal transfer of gas concentration is given and is controlled check-out console by gas sensor, control check-out console and gas concentration electric signal is carried out analyzing and processing, pass to the external world by GPRS, realize the inner gas concentration of external floating roof tank sealed ring and carry out close monitoring.
Accompanying drawing explanation
Fig. 1 is a kind of External floating roof tank O-ring seal inner combustible gas concentration wireless monitoring device schematic diagram.
Wherein, 1 is sample lines, and 2 is solenoid valve, and 3 is aspiration pump, and 4 is aspiration pump for subsequent use, 5 is gas sensor, and 6 is intrinsic safe battery group, and 7 is the first relay, and 8 is the second relay, 9 for controlling check-out console, and 10 is GPRS antenna, and 11 is exhaust port, and 12 is air inlet port.
Embodiment
Below in conjunction with the drawings and specific embodiments, the specific embodiment of the present invention is described further:
As shown in Figure 1, a kind of External floating roof tank O-ring seal inner combustible gas concentration wireless monitoring device, comprise sampling system, detection system and wireless transmitting system, described sampling system comprises many sample lines 1, the quantity of sample lines can adjust according to the size of O-ring seal inner space, solenoid valve 2, aspiration pump 3 and aspiration pump for subsequent use 4, described detection system comprises gas sensor 5, and described wireless transmitting system comprises GPRS antenna 10 and wireless relay apparatus; Described every bar sample lines 1 connects a solenoid valve 2, the output terminal of described solenoid valve 2 connects aspiration pump 3 and aspiration pump for subsequent use 4, described solenoid valve 2 is powered by intrinsic safe battery group 6, described aspiration pump 3 is electrically connected the second relay 8, described aspiration pump for subsequent use 4 is electrically connected the first relay 7, described solenoid valve 2, first relay 7, second relay 8 and gas sensor 5 are electrically connected respectively and control check-out console 9, described aspiration pump 3 is connected gas sensor 5 with the output terminal of aspiration pump 4 for subsequent use, and described gas sensor 5 connects exhaust port 12.
Described solenoid valve 2, first relay 7, second relay 8 and control check-out console 9 are powered by intrinsic safe battery group 6.
Described intrinsic safe battery group 6 is 12V.
Described control check-out console 9 is provided with GPRS antenna 10, and the inside of described control check-out console 9 is provided with wireless relay apparatus.
Described sample lines 1 is low adsorption sampling pipeline, adopts low adsorption sampling pipeline can reduce the absorption of pipeline to oil gas, reduces measuring error as much as possible.
Described aspiration pump 3 and aspiration pump for subsequent use 4 are explosion-proof extraction pump, and the working environment residing for equipment belongs to high-risk environment, needs to avoid potential safety hazard as much as possible; directly with hydrocarbons contact and be hot line job during aspiration pump work; so, select explosion-proof extraction pump, reduce potential safety hazard.
The inlet end of described sample lines 1 is positioned in same air inlet port 12.
During the wireless monitoring device work of described External floating roof tank O-ring seal inner combustible gas concentration, after device energising starts, second relay 8 controls aspiration pump 3 and works, aspiration pump 3 is with moving electromagnetic valve 2 and gas production pipe 1 to start working, gather the oil gas of O-ring seal inside, the oil gas sample gathered enters gas sensor 5 through pipeline, gas sensor 5 by gas concentration Signal transmissions to control check-out console 9, control check-out console 9 to process by analysis, data are transferred to the external world by GPRS antenna 10 and wireless relay apparatus, when aspiration pump 3 breaks down, aspiration pump 4 for subsequent use can start work.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (7)
1. an External floating roof tank O-ring seal inner combustible gas concentration wireless monitoring device, comprise sampling system, detection system and wireless transmitting system, it is characterized in that, described sampling system comprises many sample lines, solenoid valve, aspiration pump and aspiration pump for subsequent use, described detection system comprises gas sensor, and described wireless transmitting system comprises GPRS antenna and wireless relay apparatus; Every bar sample lines connects a solenoid valve, the output terminal of described solenoid valve connects aspiration pump and aspiration pump for subsequent use, described aspiration pump is electrically connected the second relay, described aspiration pump for subsequent use is electrically connected the first relay, described solenoid valve, the first relay, the second relay and gas sensor are electrically connected control check-out console respectively, described aspiration pump is connected gas sensor with delivery side of pump of bleeding for subsequent use, and described gas sensor connects exhaust port.
2. a kind of External floating roof tank O-ring seal as claimed in claim 1 inner combustible gas concentration wireless monitoring device, is characterized in that, described solenoid valve, the first relay, the second relay and control check-out console are powered by intrinsic safe battery group.
3. a kind of External floating roof tank O-ring seal as claimed in claim 2 inner combustible gas concentration wireless monitoring device, it is characterized in that, described intrinsic safe battery group is 12V.
4. a kind of External floating roof tank O-ring seal as claimed in claim 1 inner combustible gas concentration wireless monitoring device, it is characterized in that, described control check-out console is provided with GPRS antenna, and the inside of described control check-out console is provided with wireless relay apparatus.
5. a kind of External floating roof tank O-ring seal as claimed in claim 1 inner combustible gas concentration wireless monitoring device, it is characterized in that, described sample lines is low adsorption sampling pipeline.
6. a kind of External floating roof tank O-ring seal as claimed in claim 1 inner combustible gas concentration wireless monitoring device, it is characterized in that, described aspiration pump and aspiration pump for subsequent use are explosion-proof extraction pump.
7. a kind of External floating roof tank O-ring seal as claimed in claim 1 inner combustible gas concentration wireless monitoring device, it is characterized in that, the inlet end of described sample lines is positioned in same air inlet port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510121163.XA CN104792962A (en) | 2015-03-19 | 2015-03-19 | Wireless monitoring device for concentration of flammable gas inside sealing ring of outer floating roof storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510121163.XA CN104792962A (en) | 2015-03-19 | 2015-03-19 | Wireless monitoring device for concentration of flammable gas inside sealing ring of outer floating roof storage tank |
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| Publication Number | Publication Date |
|---|---|
| CN104792962A true CN104792962A (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510121163.XA Pending CN104792962A (en) | 2015-03-19 | 2015-03-19 | Wireless monitoring device for concentration of flammable gas inside sealing ring of outer floating roof storage tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106672481A (en) * | 2017-01-05 | 2017-05-17 | 中化兴中石油转运（舟山）有限公司 | Intrinsic safety fire detecting line, explosion-proof fire alarm and linkage device |
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|---|---|---|---|---|
| JPS54124317A (en) * | 1978-03-20 | 1979-09-27 | Kawasaki Heavy Ind Ltd | Safety system of floating roofed tank |
| CN101556220A (en) * | 2009-05-26 | 2009-10-14 | 郑州市光力科技发展有限公司 | Air pumping, sampling and detecting device and quick pumping and sampling system and method |
| WO2010028619A1 (en) * | 2008-09-12 | 2010-03-18 | Universität Kassel | Apparatus designed as a robot for the autonomous, unmanned determination of leaks releasing substances into the surroundings from pressurized systems, particularly pipe systems, and method for operating such a robot |
| CN201765663U (en) * | 2010-08-28 | 2011-03-16 | 东北电网有限公司大连培训中心 | Combustible gas detecting system |
| CN102183667A (en) * | 2010-12-21 | 2011-09-14 | 青岛君威网络工程有限公司 | Digital portable quick toxic and harmful gas automatic monitor |
| CN203006175U (en) * | 2012-11-20 | 2013-06-19 | 中国石油集团安全环保技术研究院大连分院 | Online monitoring device for monitoring combustible gas in secondary sealed cavity of external floating roof oil tank |
| CN203921696U (en) * | 2014-06-03 | 2014-11-05 | 翟占江 | A kind of external floating top tank sealingly secure ensures system |
| CN204008611U (en) * | 2014-07-29 | 2014-12-10 | 重庆蓝图信息产业股份有限公司 | Hazardous gas checkout equipment |
| CN104330286A (en) * | 2014-10-22 | 2015-02-04 | 中国石油化工股份有限公司 | Oil-gas concentration sampling detection device for external floating roof storage tank and sampling detection method of oil-gas concentration sampling detection device |
-
2015
- 2015-03-19 CN CN201510121163.XA patent/CN104792962A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54124317A (en) * | 1978-03-20 | 1979-09-27 | Kawasaki Heavy Ind Ltd | Safety system of floating roofed tank |
| WO2010028619A1 (en) * | 2008-09-12 | 2010-03-18 | Universität Kassel | Apparatus designed as a robot for the autonomous, unmanned determination of leaks releasing substances into the surroundings from pressurized systems, particularly pipe systems, and method for operating such a robot |
| CN101556220A (en) * | 2009-05-26 | 2009-10-14 | 郑州市光力科技发展有限公司 | Air pumping, sampling and detecting device and quick pumping and sampling system and method |
| CN201765663U (en) * | 2010-08-28 | 2011-03-16 | 东北电网有限公司大连培训中心 | Combustible gas detecting system |
| CN102183667A (en) * | 2010-12-21 | 2011-09-14 | 青岛君威网络工程有限公司 | Digital portable quick toxic and harmful gas automatic monitor |
| CN203006175U (en) * | 2012-11-20 | 2013-06-19 | 中国石油集团安全环保技术研究院大连分院 | Online monitoring device for monitoring combustible gas in secondary sealed cavity of external floating roof oil tank |
| CN203921696U (en) * | 2014-06-03 | 2014-11-05 | 翟占江 | A kind of external floating top tank sealingly secure ensures system |
| CN204008611U (en) * | 2014-07-29 | 2014-12-10 | 重庆蓝图信息产业股份有限公司 | Hazardous gas checkout equipment |
| CN104330286A (en) * | 2014-10-22 | 2015-02-04 | 中国石油化工股份有限公司 | Oil-gas concentration sampling detection device for external floating roof storage tank and sampling detection method of oil-gas concentration sampling detection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106672481A (en) * | 2017-01-05 | 2017-05-17 | 中化兴中石油转运（舟山）有限公司 | Intrinsic safety fire detecting line, explosion-proof fire alarm and linkage device |
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Application publication date: 20150722 |
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| RJ01 | Rejection of invention patent application after publication |