CN105137025B - Multifunctional LNG measuring device - Google Patents
Multifunctional LNG measuring device Download PDFInfo
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- CN105137025B CN105137025B CN201510476530.8A CN201510476530A CN105137025B CN 105137025 B CN105137025 B CN 105137025B CN 201510476530 A CN201510476530 A CN 201510476530A CN 105137025 B CN105137025 B CN 105137025B
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- differential pressure
- cavity
- lng
- pressure transmitter
- main body
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- 238000005286 illumination Methods 0.000 claims description 2
- 239000007791 liquid phase Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000012071 phase Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000003949 liquefied natural gas Substances 0.000 description 16
- 239000007789 gas Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
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- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
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- 230000005611 electricity Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
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- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- 125000003003 spiro group Chemical group 0.000 description 1
Abstract
An LNG liquid level measuring device comprises a main body shell, a rigid frame body, a camera, a combustible gas sensor, a differential pressure sensor cavity, a differential pressure sensor, a differential pressure transmitter cavity, a differential pressure transmitter, a pressure sensor cavity, a pressure sensor and a pressure transmitter; the main body shell is internally provided with a storage battery pack, a control circuit board, a display screen and a wireless transmission unit; the differential pressure transmitter cavity is internally provided with a differential pressure transmitter and is fixed outside the main body shell, the other end of the differential pressure transmitter cavity is connected with the differential pressure sensor cavity, the differential pressure sensor cavity and the differential pressure transmitter cavity are in a T shape, the differential pressure transmitter cavity and the main body shell are in a parallel position, the differential pressure sensor cavity and the middle of the differential pressure sensor cavity are internally provided with a differential pressure sensor, two ends of the differential pressure sensor cavity are respectively connected with an LNG tank in a guiding way, one end of the differential pressure sensor cavity is connected with an LNG tank bottom end, LNG liquid is guided to the differential pressure transmitter cavity, the other end of the differential pressure transmitter cavity is provided with.
Description
Technical field
The present invention relates to fields of measurement, particularly relate to a kind of LNG multifunction measuring set.
Background technology
In recent years, fast development along with clean energy resource, LNG(liquefied natural gas) increasingly it is widely used, owing to it has low temperature feature, canned body, valve body there are higher requirement, slightly quality flaw, may result in the generation of leakage accident, if realizing not in time, serious accident will occur, bringing heavy losses to people's lives and properties.
Existing LNG measures and relies on a certain unit mode to monitor, and the result not science of its monitoring is inaccurate, it is impossible to reflect the truth of LNG tank body comprehensively, do not have due monitoring function.
Summary of the invention
It is an object of the invention to provide a kind of LNG multifunction measuring set, the measurement result made is more comprehensively true, and user can round-the-clock result without Distance query.
In order to solve above-mentioned technical problem, the present invention uses technical scheme:
A kind of LNG liquid level emasuring device, including main body cover, rigid rack body, photographic head, combustible gas sensor, differential pressure pick-up cavity, differential pressure pick-up, differential pressure transmitter cavity, differential pressure transmitter, pressure sensor cavity, pressure transducer, pressure transmitter；Accumulator battery, control circuit plate, display screen and wireless transmission unit it is provided with in described main body cover；Described differential pressure transmitter cavity, built-in differential pressure transmitter, it is fixed on outside described main body cover, the other end is connected with described differential pressure pick-up cavity, and described differential pressure pick-up cavity becomes with described differential pressure transmitter cavityTType, described differential pressure transmitter cavity becomes parallel position with described main body cover, described differential pressure pick-up cavity, middle built-in differential pressure pick-up, in the guiding tube connection LNG tank respectively of two ends, one end connects LNG tank bottom, draw LNG liquid phase to differential pressure transmitter cavity, the other end installs LNG tank top, draws LNG gas phase to pressure sensor cavity, passes through tee T simultaneously and is connected with pressure transmitter cavity；Described control circuit plate includes that power-supply controller of electric, measuring circuit, microprocessor, described power controller controls are powered to measuring circuit by photovoltaic module plate or powered to measuring circuit by accumulator；Described display screen measures, for showing, the digitised values that gained signal is crossed through microprocessor processes, and main body cover is provided with for having an X-rayed the perspective portion that display screen shows；Described wireless transport module includes at least one in the wireless transport modules such as infrared ray, bluetooth, WEIFI, NFC, GSM, GPRS, UWB, 3G, 4G, 5G.
Preferably, described photographic head is Zoom camera, built-in high brightness infrared lamp, peripheral hardware glass lens, with nano-adelomorphic rain brush outside described eyeglass.
Preferably, the integrated movement of described photographic head, visual range more than 80 meters, when luminous ray deficiency, automatically turn on infrared illumination.
Preferably, described photographic head is carried out image transmitting by described subject radio transport module or is transmitted by built-in wireless network transmission module.
Preferably, described built-in wireless transport module uses stream media protocol and high power compression transmission.
Preferably, described combustible gas sensor uses infrared ray combustible gas sensor.
Preferably, described differential pressure pick-up cavity is that low temperature resistant carbon steel material is constituted, and positive and negative cavity pressure interface is the rustless steel all-welded structure of female thread and constitutes, and can be arranged on measurement pipeline by female thread pressure interface or be connected by pressure guiding pipe.
Preferably, described differential pressure pick-up, it is built in differential pressure pick-up cavity, including rustless steel isolation diaphragm, differential pressure pick-up core body and is connected with differential pressure transmitter with cable.
Preferably, described differential pressure transmitter cavity is that low temperature resistant carbon steel material is constituted, and constitutes with the rustless steel all-welded structure that main body cover interface is female thread, fixes with main body cover with locking nut.
Preferably, described pressure transducer, it is built in pressure sensor cavity, including pressure sensor core, pressure transmitter, the two connects with circuit, will record pressure signal simultaneously and be converted into 4～20mA standard signals, and flow to microprocessor with cable.
Preferably, described rigid rack body is made up of angle-style portion and bottom surface sections, and Open Side Down in described angle-style portion, and its one side is vertical connects described bottom surface sections, described main body cover is fixed in described bottom surface sections, and its another side is for fixing described photovoltaic module plate and being located remotely from the side of described main body cover.
Preferably, described angle-style portion is provided with perforate, and described power line connects the accumulator within described photovoltaic module plate and main body cover and control circuit plate through described perforate.
Preferably, described main body cover is cuboid or cube, and described perspective portion is located at the main body cover surface away from described bottom surface sections by groove bayonet socket and main body cover card tightening seal, and corner bayonet socket stud is fixed.
Alternatively, described main body cover is pentagonal prism body, and its first side is for photovoltaic module plate described in fixed placement；Its second side being separated by with described first side is the bottom surface for being positioned over plane；Its 3rd side being separated by with described first side is for being connected described transmitter cavity；Described second side and the 3rd side are not ipsilateral；It is alternate sets perspective portion on the 4th side of described first side and the 3rd side.
Preferably, it is connected by pluggable connector between described accumulator with photovoltaic module plate and control circuit plate.
Photovoltaic module plate and accumulator are set; convert the solar into electric energy by photovoltaic module plate and provide power supply for measuring circuit; storage electric energy is in accumulator simultaneously; use accumulator to be powered when photovoltaic module plate does not receives solar energy; power-on time is lasting; and clean energy; mobility is strong; main body cover is by the most fenced to accumulator, measuring circuit, display screen; and perspective portion is set in the display area of display screen; by the display signal on perspective portion visual display, it is possible to play preferable protective effect.
After using technique scheme, the present invention compared with prior art has following outstanding advantages: the present invention can be effectively prevented from pressure transducer and cause data distortion because range is long, can avoid installing in tank interior the technique of sensor complex, save cable consumptive material, be greatly saved safety cost；Main, when sensor is damaged, can be conveniently replaced, it is to avoid cause whole LNG tank to be scrapped because of sensor degradation.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of LNG liquid level emasuring device of the embodiment of the present invention.
Fig. 2 is the pressure sensor cavity structural representation of the embodiment of the present invention.
Fig. 3 is the differential pressure pick-up cavity of the embodiment of the present invention, transmitter cavity structural representation.
Fig. 4 is the main body cover inner structure schematic diagram of the embodiment of the present invention.
Fig. 5 is the camera structure schematic diagram of the embodiment of the present invention.
1 main body cover, 2 base plates, 3 photovoltaic module plates, 4 gussets, 5 power lines, 6 cables, 7 pressure signal lines, 8 pressure sensor cavity, 9 locking nuts, 10 tee Ts, 11 water joints, 12, low pressure skirt interface, 13, differential pressure pick-up cavity, 14 differential pressure transmitter cavitys, 15 display screens, 16 high pressure skirt interfaces；17 photographic head cables, 18 photographic head, 101 control circuit plates, 102 accumulator, 103 display screens, 104 perspective planes；801 pressure sensor body, 802 cavity lids, 803 pressure sensor cores, 804 studs, 805 terminal heads, 806 pressure transmitters, 807 studs, 808 thin nuts, 809 external screw joints, 810 pressure tube chambers；, 131 differential pressure tube chambers, 132 differential pressure core bodys, 133 differential pressure signal cables；141 locking nuts, 142 O, 143 differential pressure transmitter core bodys, 181 nano-adelomorphic rain brush, 182 glass lens, 183 infrared ray combustible gas sensors, 184 wireless transport modules, 185 photographic head cables, 186 infrared lamps.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in detail.
Elaborate a lot of detail in the following description so that fully understanding the present invention.But the present invention can implement to be much different from alternate manner described here, those skilled in the art can do similar popularization in the case of intension of the present invention, and therefore the present invention is not embodied as and concrete accompanying drawing is limited by following public.
Embodiment one
nullAs shown in Figure 1，A kind of LNG liquid level emasuring device，Main body cover 1 including accommodating microprocessor，There is the pressure sensor cavity 13 of both positive and negative polarity pressure interface，Absorb solar energy and be converted into the photovoltaic module plate 3 of electric energy，And rigid rack body 2，Main body cover 1 is fixed on rigid rack body 2，It is outside that described photovoltaic module plate 3 is fixed on described main body cover 1 by rigid rack body 2，And it is internal to be connected to described main body cover 1 by power line 5，Described transmitter cavity 14 is fixed on described main body cover 1 outside and is connected to main body cover 1 inside by the second differential pressure cable 106，Main body cover 1 is provided with the perspective portion 105 shown for display screen，The signal on display screen 104 is read for can pass through main body cover 1，Described perspective portion is formed as lid and can be opened，Such that it is able to the parts taken out in main body cover 1.
Continuing with Fig. 1, main body cover 1 is fixed on base plate 2, connects photovoltaic module plate 3 by power line 5, and described photovoltaic module plate 3 is fixed on gusset 4, and the solar energy absorbed is changed into electric energy, and to be transported to accumulator by described power line 5 standby；Low pressure skirt (not shown) connecting tee pipe 10 is drawn from tank inner top (not shown), described tee T 10 one end connects differential pressure pick-up cavity 13, the other end connects pressure transmitter cavity 8, and lock and be fixed on pressure sensor cavity 8 by locking nut 9, described skirt interface is the rustless steel all-welded structure of female thread and constitutes.
Embodiment two
nullWith continued reference to Fig. 1，Described rigid rack body is made up of the bottom surface sections 2 in angle-style portion 4 and stationary body shell 1 for supporting photovoltaic module plate 3，Described main body cover 1 is fixed in described bottom surface sections 2，Open Side Down in described angle-style portion 4 (towards the plane of arranging device)，Angle-style portion 4 includes the two sides opened，The wherein vertical edge connecting described bottom surface sections 2 of one side，Another side is for fixing described photovoltaic module plate 3 and being located remotely from the side of described main body cover 1，Photovoltaic module plate 3 after Gu Ding favours arrangement plane，Inclined degree is determined by the angle in angle-style portion 4，The angular range in described angle-style portion 4 selects between 30 to 150 degree，Such as when the angle in angle-style portion 4 is 45 degree，Photovoltaic module plate 3 can also be 45 degree in the angle disposing plane，Solar radiation can be received well，Absorb solar energy，The conversion ratio of the energy is high.
Described angle-style portion 4 is provided with the perforate for threading, accumulator within described photovoltaic module plate 3 and main body cover 1 and control circuit plate 101 are coupled together by described power line 4 through described perforate, reduce coiling, angle-style portion 4 in Fig. 1 is linked together by spiro connecting piece by support plate and angle-style frame, in one embodiment, angle-style portion 4 is integrated part, and further, angle-style portion 4 and bottom surface sections 2 are one-body molded.
Embodiment three
Continue with Fig. 2, pressure sensor cavity 8, pressure sensor cavity 801 is connected with tee T 10 one end internal thread interface by external screw joint 809, measured medium introduces pressure tube chamber 810 by tee T 10 one end, pressure signal will be recorded by pressure sensor core 803 and be sent to pressure transmitter 806, described pressure transmitter 806 is fixed with studs 807 by stud 804, described studs 807 is connected and fixing cable 811 by thin nut 808, described cable 811 other end is connected with terminal head 805, the other end of described terminal head 805 is connected with holding wire 7, described holding wire 7 is connected with control circuit plate by water joint 11, complete the transmission to pressure signal.
nullContinue with Fig. 3，Described tee T one end low pressure skirt interface 12 is connected with differential pressure pick-up cavity 13，Described differential pressure pick-up cavity 13 other end is threadeded with high pressure skirt (not shown) by high pressure skirt interface 16，Described high pressure skirt interface 16 is female thread，High pressure skirt is external screw thread (not shown)，High-low pressure medium is respectively by high pressure skirt interface 16、Low pressure skirt interface 12 enters differential pressure tube chamber 131，High-pressure medium promotes sensor membrane (not shown) to low-pressure end displacement，Its displacement is directly proportional to both sides differential pressure，Displacement is recorded by the capacitor plate of sensor both sides，It is converted into the linear signal proportional to tested differential pressure by sensor core 132，It is transported to differential pressure transmitter core body 143 through differential pressure signal cable 133，Described differential pressure transmitter core body 143 is connected with control circuit plate by cable，Complete the transmission of differential pressure signal.
Embodiment four
The accumulator 102 as redundant electrical power, control circuit plate 101, display screen 103 it is provided with in main body cover 1；Photovoltaic module plate 3 is connected to described accumulator 102 and control circuit plate 101 by power line 5, and photovoltaic module plate 3 can be to accumulator charging and to control circuit plate 101 when generating；；Described control circuit plate 101 includes power-supply controller of electric, measuring circuit and microprocessor (not shown), and power controller controls is powered to measuring circuit by photovoltaic module plate 3 when photovoltaic module plate 3 generates electricity, powered to measuring circuit by accumulator 102 when photovoltaic module plate 3 does not generates electricity；Described display screen 103 is for showing the handled measurement signal obtained of measuring circuit, and display location is internal in main body cover 1, visual through main body cover 1, can protect display screen, extend its service life.
In above-mentioned figure, described main body cover 1 is cube, but without limitation, such as, can also be cuboid, and perspective portion 104 is located at main body cover 1 upper surface as cover piece, i.e. away from the surface of described bottom surface sections 2.
Embodiment five
Photographic head 18 built-in infrared line lamp 186, external glass lens 182, glass lens 182 is outer with nano-adelomorphic rain brush 181
It is provided with infrared ray combustible gas sensor 183 inside photographic head 18 glass lens, the signal of camera collection signal and sensor acquisition is transferred to control road electroplax 101 microprocessor (not shown) by photographic head cable 185 and processes, or is sent to the webserver by wireless transport module 184.
Although the present invention is open as above with preferred embodiment; but it is not for limiting claim; any those skilled in the art are without departing from the spirit and scope of the present invention; can make possible variation and amendment, therefore protection scope of the present invention should be defined in the range of standard with the claims in the present invention.
Claims (9)
1. a LNG multifunction measuring set, it is characterised in that: include main body cover, rigid rack body, photographic head, combustible gas sensor, differential pressure pick-up cavity, differential pressure pick-up, differential pressure transmitter cavity, differential pressure transmitter, pressure sensor cavity, pressure transducer, pressure transmitter；
Accumulator battery, control circuit plate, display screen and network protocol module it is provided with in described main body cover；
Described photographic head connects control road electroplax and alarm device by cable；
Described differential pressure transmitter cavity, built-in differential pressure transmitter, it is fixed on outside described main body cover, the other end is connected with described differential pressure pick-up cavity, and described differential pressure pick-up cavity becomes with described differential pressure transmitter cavityTType, described differential pressure transmitter cavity becomes parallel position with described main body cover；
Described differential pressure pick-up cavity, middle built-in differential pressure pick-up, in the guiding tube connection LNG tank respectively of two ends, one end connects LNG tank bottom, draw LNG liquid phase to differential pressure transmitter cavity, the other end installs LNG tank top, draws LNG gas phase to pressure sensor cavity, passes through tee T simultaneously and is connected with pressure transmitter cavity；
Described display screen measures, for showing, the digitised values that gained signal is crossed through microprocessor processes, and main body cover is provided with for having an X-rayed the perspective portion that display screen shows.
2. LNG multifunction measuring set as claimed in claim 1, it is characterised in that: described photographic head is Zoom camera, built-in high brightness infrared lamp, peripheral hardware glass lens.
3. LNG multifunction measuring set as claimed in claim 1, it is characterised in that: the integrated movement of described photographic head, visual range more than 80 meters.
4. LNG multifunction measuring set as claimed in claim 1, it is characterised in that: described photographic head, when luminous ray deficiency, automatically turns on infrared illumination.
5. LNG multifunction measuring set as claimed in claim 1, it is characterised in that: described photographic head uses H.264 screen compress technique.
6. LNG multifunction measuring set as claimed in claim 1, it is characterised in that: described combustible gas sensor uses infrared ray combustible gas sensor.
7. LNG multifunction measuring set as claimed in claim 2, it is characterised in that: with nano-adelomorphic rain brush outside described photographic head glass lens.
8. LNG multifunction measuring set as claimed in claim 1, it is characterised in that: described network protocol module includes at least one in HTTP, TCP, ARP, RTSP, RTP, UDP, RTCP, SMTP, FTP, DHCP, DNS, DDNS, PPPOE, IPV4/V6, SNMP, QOS, UPNP and NTP.
9. LNG multifunction measuring set as claimed in claim 1, it is characterised in that: described network protocol module uses digital watermarking encryption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476530.8A CN105137025B (en) | 2015-08-06 | 2015-08-06 | Multifunctional LNG measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476530.8A CN105137025B (en) | 2015-08-06 | 2015-08-06 | Multifunctional LNG measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105137025A CN105137025A (en) | 2015-12-09 |
| CN105137025B true CN105137025B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510476530.8A Expired - Fee Related CN105137025B (en) | 2015-08-06 | 2015-08-06 | Multifunctional LNG measuring device |
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| CN (1) | CN105137025B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4478237B2 (en) * | 1999-04-23 | 2010-06-09 | Ｉｈｉプラント建設株式会社 | Liquid level gauge for cryogenic tank |
| CN1746636A (en) * | 2005-10-17 | 2006-03-15 | 南京工业大学 | Measurement of liquefied gas weight in sphere |
| CN2938037Y (en) * | 2006-08-10 | 2007-08-22 | 张川潮 | Multi-parameter intelligent transmitter |
| CN200950091Y (en) * | 2006-10-10 | 2007-09-19 | 中国国际海运集装箱(集团)股份有限公司 | Pressure and liquid level sensor for potlike container and vehicle tanker |
| CN103206614B (en) * | 2013-04-01 | 2015-05-20 | 中山大学 | Early-warning device and early-warning method used for monitoring accidents of boiling liquid expanding vapor explosion (BLEVE) of pressuring-bearing storage tanks |
| CN203929114U (en) * | 2014-04-30 | 2014-11-05 | 西安科技大学 | A kind of safety monitoring system of liquid tank truck |
| CN104486385A (en) * | 2014-12-02 | 2015-04-01 | 上海雷尼威尔技术有限公司 | Wireless communication system of LNG (Liquefied Natural Gas) storage tank equipment |
| CN204512948U (en) * | 2015-04-08 | 2015-07-29 | 福建中基能源有限公司 | A kind of LNG storage tank supervisory device |
| CN204903526U (en) * | 2015-08-06 | 2015-12-23 | 上海雷尼威尔技术有限公司 | Multi -functional measuring device of LNG |
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2015
- 2015-08-06 CN CN201510476530.8A patent/CN105137025B/en not_active Expired - Fee Related
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| CN105137025A (en) | 2015-12-09 |
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