CN106290805A - LNG groove tank car liquid impurities content multi-parameter monitoring devices and monitoring method thereof - Google Patents
LNG groove tank car liquid impurities content multi-parameter monitoring devices and monitoring method thereof Download PDFInfo
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- CN106290805A CN106290805A CN201610644403.9A CN201610644403A CN106290805A CN 106290805 A CN106290805 A CN 106290805A CN 201610644403 A CN201610644403 A CN 201610644403A CN 106290805 A CN106290805 A CN 106290805A
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- 239000007788 liquid Substances 0.000 title claims abstract description 50
- 239000012535 impurity Substances 0.000 title claims abstract description 19
- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000012806 monitoring device Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims description 17
- 239000000523 sample Substances 0.000 claims abstract description 47
- 239000012530 fluid Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 25
- 239000007791 liquid phase Substances 0.000 claims description 15
- 241000610716 Balduina Species 0.000 claims description 14
- 239000012071 phase Substances 0.000 claims description 13
- 230000000740 bleeding effect Effects 0.000 claims description 12
- 239000004615 ingredient Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 11
- 239000007792 gaseous phase Substances 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 5
- 230000008016 vaporization Effects 0.000 claims description 5
- 238000009834 vaporization Methods 0.000 claims description 5
- 230000000717 retained effect Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 48
- 229910052757 nitrogen Inorganic materials 0.000 description 24
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 12
- 229910052697 platinum Inorganic materials 0.000 description 6
- 238000002604 ultrasonography Methods 0.000 description 4
- 101100520231 Caenorhabditis elegans plc-3 gene Proteins 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 208000009084 Cold Injury Diseases 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000002595 cold damage Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Biochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
LNG groove tank car liquid impurities content multi-parameter monitoring devices, including LNG groove tank, it is provided with fluid reservoir in described LNG groove tank, it is characterized in that, flexible probe tube is installed in described fluid reservoir, the pulley one that anti-riot driven by motor rotates is installed in the both sides of described flexible probe tube, and the bottom in described LNG groove tank is provided with pulley two；Steel wire rope one end is fixed on the connecting hole of flexible probe tube both sides, and the other end walks around pulley two successively, pulley one is once again secured on connecting hole；It is connected between PLC with motor and has pilot；Beneficial effects of the present invention: the present invention is by extracting the LNG in transport, and recycling instrument is analyzed liquid impurities detection therein and obtains data, and by GPS, monitoring result is sent to monitoring station, accomplishes to monitor in real time, is suitable for promoting the use of.
Description
Technical field
The present invention relates to a kind of LNG groove tank car liquid impurities content multi-parameter monitoring devices and monitoring method, belonging to
Work monitoring technical field.
Background technology
Liquid nitrogen: the nitrogen of liquid.Being inert, colourless, odorless, non-corrosiveness, non-combustible, temperature is extremely low.Nitrogen constitutes
The major part (volume ratio 78.03%, weight ratio 75.5%) of air.Nitrogen is inactive, does not support burning.Inhale in a large number during vaporization
Thermo-contact causes cold injury.At ambient pressure, liquid nitrogen temperature is-196 DEG C；The liquid nitrogen of 1 cubic metre can be expanded to 696 cubic metre 21
DEG C pure gaseous nitrogen.Liquid nitrogen is colourless, tasteless, under high pressure the liquids and gases of low temperature.
Liquid levels field of measuring technique is belonged to, especially as Application No. CN202471181U discloses this utility model
Relate to a kind of liquid nitrogen container level monitoring display device.This monitoring display device includes liquid nitrogen container (1), the top of described liquid nitrogen container (1)
Portion arranges processor (2), and the inside of liquid nitrogen container (1) is uniformly arranged 5～10 platinum resistance thermometer sensor,s (3), platinum resistance thermometer sensor, in vertical direction
(3) being connected with processor (2) by holding wire (4), arrange support (5) in described liquid nitrogen container (1), described platinum resistance thermometer sensor, (3) is solid
It is scheduled on support (5).The beneficial effects of the utility model are: accurately control, easy and simple to handle, intuitive display.
And for example Application No. CN204348054U discloses a kind of long-range liquid nitrogen level based on GPRS monitoring system.Should
Level monitoring system includes that 5V power module, 5V turn 24V DC-DC level switch module, platinum resistor temperature measuring module, ultrasound wave spy
Head, AVR single chip, GPRS module.Annexation between each several part is: 5V power module is single-chip microcomputer and GPRS module confession
Electricity, turns 24V DC-DC module by 5V and is ultrasound probe and platinum resistance measurement module is powered, measure liquid nitrogen bottle by platinum resistance
Interior temperature, ultrasound probe is measured ultrasound wave and is reflected back the time difference of probe through liquid nitrogen liquid level, further according to the velocity of sound under different temperatures
The distance of probe and liquid nitrogen level can be calculated, and then calculated liquid level by liquid nitrogen bottle height degree, liquid level information is led to
Cross GPRS module to send to receiving device.Temperature is carried out while achieving real-time remote monitoring liquid nitrogen level by this utility model
Monitoring, it is simple to the relevant parameter of low temperature environment in record liquid nitrogen bottle, improves the reliability of liquid nitrogen cryogenics environment, also has volume
Little, low in energy consumption advantage.
2015, China LNG tank car recoverable amount 7441, and present the situation increased year by year.With annual 1000 groove tank cars,
But the liquid impurities content multi-parameter monitoring technology for LNG tank car there is presently no, therefore it is badly in need of researching and developing this equipment and comes
Meet the market demand.
Summary of the invention
Instant invention overcomes the problem that prior art exists, it is proposed that a kind of stone LNG groove tank car many ginsengs of liquid impurities content
Number monitoring device and monitoring method thereof, the present invention, by extracting the LNG in transport, is analyzed detection utilizing instrument
Obtain data, and be sent to monitoring station, accomplish to monitor in real time.
The concrete technical scheme of the present invention is as follows:
LNG groove tank car liquid impurities content multi-parameter monitoring devices, including LNG groove tank, is provided with liquid storage in described LNG groove tank
Room, it is characterised in that be provided with flexible probe tube in described fluid reservoir, driven by motor rotation is installed in the both sides of described flexible probe tube
The pulley one turned, the bottom in described LNG groove tank is provided with pulley two；Steel wire rope one end is fixed on flexible probe tube both sides and connects
Kong Shang, the other end walks around pulley two successively, pulley one is once again secured on connecting hole；It is connected between PLC with motor and has
Pilot；
The top of described flexible probe tube connects suction nozzle, and the end of described flexible probe tube connects discharge pipe, institute
State flexible probe tube and be also associated with air pump of bleeding, be additionally provided with in described fluid reservoir and be transmitted through sealing hole for flexible probe tube, described close
The inner side of sealing of hole is provided with rubber blanket, and the outer ring of connecting hole is also equipped with expanding circle；
Being provided with heat exchanger on described discharge pipe, described heat exchanger discharging opening is respectively equipped with gaseous phase outlet and liquid
Exporting mutually, wherein: gaseous phase outlet is connected with gas phase gas analytical instrument, liquid-phase outlet is connected with liquid phase ingredient analyser；Institute
State gas phase gas analytical instrument and liquid phase ingredient analyser to be connected with data process and display device by data wire.
Preferentially, the described diameter of circle that expands is less than sealing hole.
Preferentially, the feed end of described discharge pipe is provided with check-valves.
Preferentially, described data process and display device is also associated with data sending apparatus.
Preferentially, described suction nozzle includes the fixed block being fixed on flexible probe tube tube wall, and the peace that matches with fixed block
The plug of dress, forms feeding-passage between plug and fixed block；The center of described fixed block is provided with honeycomb head, described honeycomb head
Both sides spring one be installed be connected with plug, the block that the inner side of described plug is connected by spring two；Described block upper
It is provided with return flow line in side's plug, is additionally provided with backflow chute in described block and connects with honeycomb head.
Based on said apparatus, the present invention also provides for a kind of LNG groove tank car liquid impurities content multi-parameter monitoring method, and it is special
Levy and be, comprise the steps:
1) controlling pulley one rotation by PLC pulls steel wire rope motion to make flexible probe tube extend to LNG groove tank
Interior motion arrives specifies sampling location；
2) air pump of bleeding starts to bleed to inside flexible probe tube, produces negative pressure in making pipe, and plug is opened by suction simultaneously,
LNG is by finally entering in discharge pipe in sucking flexible probe tube by feeding-passage after honeycomb head, and now check-valves leaves
Open, LNG is retained；
3) air pump of bleeding stops bleeding, and so by the resilience of spring one, plug is blocked fixed block again, now stretches
Probe tube remains in LNG enters return flow line and backs down block, after entering honeycomb head by the sidewall of block and backflow chute
Flowing back in LNG groove tank, spring two resilience makes block be blocked return flow line；
4) control pulley one opposite direction by PLC to rotate, make flexible probe tube contract back to seal hole, now expand
Great circle compresses and seals hole, seals hole and is plugged；
5) LNG enters the heated liquid phase ingredient analyser of sending into afterwards of heat exchanger, remaining continuation heating vaporization, and sends into
Gas phase gas analytical instrument；
6) data detected are sent into data by data wire by liquid phase ingredient analyser and gas phase gas composition analyzer
Process and carry out in display device processing display；
7) data process and display device transmits data to Control Room by data sending apparatus and accomplishes to monitor in real time.This
The beneficial effect of the invention: the present invention, by extracting the liquid nitrogen in transport, obtains number utilizing instrument to be analyzed detection
According to, and it is sent to monitoring station, accomplish to monitor in real time, be suitable for promoting the use of.
Accompanying drawing explanation
Fig. 1 is the structural representation of LNG groove tank car liquid impurities content multi-parameter monitoring devices of the present invention；
Fig. 2 is structural representation when LNG groove tank car liquid impurities content multi-parameter monitoring devices of the present invention operation；
Fig. 3 is the structural representation of fluid reservoir；
Fig. 4 is the structural representation of suction nozzle.
Detailed description of the invention
Embodiment 1
As it can be seen, LNG groove tank car liquid impurities content multi-parameter monitoring devices, including LNG groove tank 1, described LNG groove tank
Being provided with fluid reservoir 4 in 1, be provided with flexible probe tube 6 in described fluid reservoir 4, motor belt motor is installed in the both sides of described flexible probe tube 6
The dynamic pulley 1 rotated, the bottom in described LNG groove tank 1 is provided with pulley 2 13；Steel wire rope 14 one end is fixed on flexible sampling
On pipe 6 both sides connecting hole 17, the other end walks around pulley 2 13 successively, pulley 1 is once again secured on connecting hole 17；PLC controls
It is connected between device 3 and motor and has pilot.Two pulleys can do forward and reverse rotation under the drive of motor, passes through
Rotate and pull the top down motion of flexible probe tube 6 to stretch out, after sampling, drive the top of flexible probe tube 6 to move upward again
Shrink back in situ.
The top of flexible probe tube 6 connects suction nozzle 20, and the end of described flexible probe tube 6 connects discharge pipe 21,
The feed end of discharge pipe 21 is provided with check-valves 7.The effect of check-valves 7 is to be retained by the liquid nitrogen drunk up, and prevents back
Stream makes detection failure, and described flexible probe tube 6 is also associated with air pump of bleeding, and is additionally provided with for flexible probe tube 6 in described fluid reservoir 4
Being transmitted through sealing hole 15, the inner side in described sealing hole 15 is provided with rubber blanket 18, and the outer ring of connecting hole 17 is also equipped with expanding circle 16.
Expand the diameter of circle 16 less than sealing hole 15.Push down sealing hole 15 by expanding circle 16, so seal hole 15 and be sealed, prevent
Reveal.
Being provided with heat exchanger 8 on discharge pipe 21, described heat exchanger 8 discharging opening is respectively equipped with gaseous phase outlet and liquid
Exporting mutually, owing to the temperature of liquid nitrogen is extremely low, Liquid Detection needs to heat it, and vapor detection needs further to heat
Produce vaporization, both need heat exchanger 8 to heat, wherein: gaseous phase outlet is connected with gas phase gas analytical instrument 9,
Liquid-phase outlet is connected with liquid phase ingredient analyser 91；Described gas phase gas analytical instrument 9 and liquid phase ingredient analyser 91 pass through
Data wire processes with data and display device 10 is connected.Data process and display device 10 is also associated with data sending apparatus 12.
Suction nozzle 20 includes the fixed block 201 being fixed on flexible probe tube 6 tube wall, and the installation that matches with fixed block 201
Plug 206, between plug 206 and fixed block 201 formed feeding-passage 209；The center of described fixed block 201 is provided with honeycomb
203, the both sides of described honeycomb head 203 are provided with spring 1 and are connected with plug 206, and bullet is passed through in the inner side of described plug 206
The block 205 that spring 2 207 connects；Return flow line 208 it is provided with, in described block 205 in the top plug 206 of described block 205
It is additionally provided with backflow chute 204 to connect with honeycomb head 203.
Based on said apparatus, the present invention also provides for a kind of LNG groove tank car liquid impurities content multi-parameter monitoring method, and it is special
Levy and be, comprise the steps:
1) controlling pulley 1 rotation by PLC 3 pulls steel wire rope 14 motion to make flexible probe tube 6 extend to LNG
In groove tank 1, motion arrives and specifies sampling location；
2) air pump of bleeding starts to bleed to flexible probe tube 6 is internal, produces negative pressure, simultaneously plug 206 quilt in making pipe
Suction is opened, and LNG is by finally entering discharge pipe 21 in sucking flexible probe tube 6 by feeding-passage 209 after honeycomb head 203
In, now check-valves 7 is opened, and is retained by LNG；
3) air pump of bleeding stops bleeding, and so by the resilience of spring 1, plug 206 is blocked fixed block 201 again,
The probe tube 6 that now stretches remains in LNG enters return flow line 208 and backs down block 205, by sidewall and the backflow of block 205
Chute 204 flows back in LNG groove tank 1 after entering honeycomb head 203, and spring 2 207 resilience makes block 205 be blocked up return flow line 208
Live；
4) control pulley 1 opposite direction by PLC 3 to rotate, make flexible probe tube 6 contract back to seal hole 15,
Now expand circle 16 compression and seal hole 15, seal hole 15 and be plugged；
5) LNG enters the heated liquid phase ingredient analyser 91 of sending into afterwards of heat exchanger 8, and vaporization is heated in remaining continuation, and
Send into gas phase gas analytical instrument 9；
6) data detected are sent into number by data wire by liquid phase ingredient analyser 91 and gas phase gas composition analyzer 9
According to processing and carrying out in display device 10 processing display；
7) data process and display device 10 transmits data to Control Room by data sending apparatus 12 and accomplishes to supervise in real time
Control.
In addition to the implementation, the present invention can also have other embodiments.All employing equivalents or equivalent transformation shape
The technical scheme become, all falls within the protection domain of application claims.
Claims (6)
1.LNG groove tank car liquid impurities content multi-parameter monitoring devices, including LNG groove tank (1), is provided with in described LNG groove tank (1)
Fluid reservoir (4), it is characterised in that be provided with flexible probe tube (6), the two of described flexible probe tube (6) in described fluid reservoir (4)
The pulley one (5) that driven by motor rotates is installed in side, and the bottom in described LNG groove tank (1) is provided with pulley two (13)；Steel wire rope
(14) one end is fixed on flexible probe tube (6) both sides connecting hole (17), and the other end walks around pulley two (13), pulley one successively
(5) it is once again secured on connecting hole (17)；It is connected between PLC (3) and motor and has pilot；
The top of described flexible probe tube (6) connects suction nozzle (20), and the end of described flexible probe tube (6) connects discharge nozzle
Road (21), described flexible probe tube (6) is also associated with air pump of bleeding, and is additionally provided with for flexible probe tube (6) in described fluid reservoir (4)
Through sealing hole (15), the inner side of described sealing hole (15) is provided with rubber blanket (18), and the outer ring of connecting hole (17) is also equipped with
Expand circle (16)；
Being provided with heat exchanger (8) on described discharge pipe (21), described heat exchanger (8) discharging opening is respectively equipped with gaseous phase outlet and liquid
Export mutually, wherein: gaseous phase outlet is connected with gas phase gas analytical instrument (9), liquid-phase outlet and liquid phase ingredient analyser (91)
Connect；Described gas phase gas analytical instrument (9) and liquid phase ingredient analyser (91) are processed and display with data by data wire
Device (10) connects.
2. LNG groove tank car liquid impurities content multi-parameter monitoring devices as claimed in claim 1, it is characterised in that described expansion
The diameter of great circle (16) is less than sealing hole (15).
3. LNG groove tank car liquid impurities content multi-parameter monitoring devices as claimed in claim 1, it is characterised in that described in go out
The feed end of pipe material (21) is provided with check-valves (7).
4. LNG groove tank car liquid impurities content multi-parameter monitoring devices as claimed in claim 1, it is characterised in that described number
It is also associated with data sending apparatus (12) according to process and display device (10).
5. the LNG groove tank car liquid impurities content multi-parameter monitoring devices as described in any one in claim 1-4, its feature
Being, described suction nozzle (20) includes the fixed block (201) being fixed on flexible probe tube (6) tube wall, and with fixed block (201) phase
Coordinate the plug (206) installed, between plug (206) and fixed block (201), form feeding-passage (209)；Described fixed block
(201) center is provided with honeycomb head (203), and the both sides of described honeycomb head (203) are provided with spring one (202) and plug
(206) connect, the block (205) that the inner side of described plug (206) is connected by spring two (207)；Described block (205) upper
It is provided with return flow line (208) in side's plug (206), in described block (205), is additionally provided with backflow chute (204) and honeycomb head
(203) connection.
6. a LNG groove tank car liquid impurities content multi-parameter monitoring method, it is characterised in that comprise the steps:
1) controlling pulley one (5) rotation by PLC (3) pulls steel wire rope (14) motion to make flexible probe tube (6) extend
In LNG groove tank (1), motion arrives and specifies sampling location；
2) air pump of bleeding starts to bleed to flexible probe tube (6) is internal, produces negative pressure, simultaneously plug (206) quilt in making pipe
Suction is opened, and LNG is by finally entering discharge nozzle in sucking flexible probe tube (6) by feeding-passage (209) after honeycomb head (203)
In road (21), now check-valves (7) is opened, and is retained by LNG；
3) air pump of bleeding stops bleeding, and so by the resilience of spring one (202), plug (206) is blocked fixed block again
(201), the probe tube (6) that now stretches remains in LNG enters return flow line (208) and backs down block (205), passes through block
(205) sidewall and backflow chute (204) are flowed back in LNG groove tank (1) after entering honeycomb head (203), spring two (207) resilience
Block (205) is made return flow line (208) to be blocked；
4) control pulley one (5) opposite direction by PLC (3) to rotate, make flexible probe tube (6) contract back to seal hole
(15), now expand circle (16) and compress sealing hole (15), seal hole (15) and be plugged；
5) LNG enters the heated liquid phase ingredient analyser (91) of sending into afterwards of heat exchanger (8), and vaporization is heated in remaining continuation, and
Send into gas phase gas analytical instrument (9)；
6) data detected are sent into number by data wire by liquid phase ingredient analyser (91) and gas phase gas composition analyzer (9)
According to processing and carrying out in display device (10) processing display；
7) data process and display device (10) transmits data to Control Room by data sending apparatus (12) and accomplishes to supervise in real time
Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644403.9A CN106290805B (en) | 2016-08-04 | 2016-08-04 | LNG groove tank cars liquid impurities content multi-parameter monitoring devices and its monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644403.9A CN106290805B (en) | 2016-08-04 | 2016-08-04 | LNG groove tank cars liquid impurities content multi-parameter monitoring devices and its monitoring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106290805A true CN106290805A (en) | 2017-01-04 |
| CN106290805B CN106290805B (en) | 2018-03-23 |
Family
ID=57666570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610644403.9A Active CN106290805B (en) | 2016-08-04 | 2016-08-04 | LNG groove tank cars liquid impurities content multi-parameter monitoring devices and its monitoring method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110045041A (en) * | 2019-05-20 | 2019-07-23 | 中海石油气电集团有限责任公司 | Liquefied natural gas sampling and continuously trapping system |
| CN110987744A (en) * | 2019-12-13 | 2020-04-10 | 黄东 | Monitoring and early warning device for outdoor raised dust and noise |
| CN112141647A (en) * | 2019-06-28 | 2020-12-29 | 黄智渊 | Dispensing system for barreled materials and method of operation thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106290805B (en) | 2018-03-23 |
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