CN106628011B - A kind of harbour ship-to-shore interface safety device - Google Patents
A kind of harbour ship-to-shore interface safety device Download PDFInfo
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- CN106628011B CN106628011B CN201710058338.6A CN201710058338A CN106628011B CN 106628011 B CN106628011 B CN 106628011B CN 201710058338 A CN201710058338 A CN 201710058338A CN 106628011 B CN106628011 B CN 106628011B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
- B63B27/25—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines for fluidised bulk material
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- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention discloses a kind of harbour ship-to-shore interface safety device, the ship-to-shore of device for recovering oil and gas or VOCs controlling device when various coastal, inland terminal depot oil carriers, chemicals loading and unloading is suitble to join.It is on the sledge chassis of an entirety, it is integrated with insulating flange, pressure transmitter, thief hatch, oil gas cutting system, filter, the first fire arrester, pressure/vacuum bleed-off system, fills a series of devices of lazy/dilution system, temperature transmitter, blowdown system, blower, earthed system, differential pressure transmitter, instrument signal and interlock connection in device are integrated in a PLC control system, guarantee ship is when carrying out oil product, handling of chemicals operation, the safe and stable operation of gas recovery system for oil.The present apparatus is suitable for the petroleum vapor recovery of the handling such as coastal, inland navigation craft handling oil product, chemicals and VOCs administers occasion.
Description
Technical field
The invention belongs to petroleum vapor recovery and VOCs Treatment process field, in particular to a kind of harbour ship-to-shore interface fills safely
It sets.
Background technique
Oil product volatile oil gas in the links such as storage and transportation and handling, pollution atmospheric environment, damage people health, waste
The energy.In consideration of it, China has gradually carried out petroleum vapor recovery in gas station, storage tank farm, petroleum refining enterprise etc. and VOCs is administered and gone
It is dynamic.China possesses the above crude oil of 10,000 tons and about 190, product oil berth, crude oil and product oil year as world shipping big country
About 6.5 hundred million tons of handling capacity, it is oil gas and the weight of VOCs that the operation of harbour oil loading, which discharges about 6.5 ten thousand tons of oil gas to atmosphere every year,
Want emission source.But it is limited by the reasons such as domestic oil gas and VOCs control idea, harbour itself specific condition, harbour petroleum vapor recovery work
It makes slow progress always.
2015 year traffic Department of Transportation issue " crude oil finished product wharf petroleum vapor recovery action scheme ", China's harbour petroleum vapor recovery into
Enter Rapid development stage.Harbour petroleum vapor recovery is a systematic engineering of business, and the harbour device for recovering oil and gas of complete set should at least wrap
Include petroleum vapor recovery gas phase arm (hose), ship-to-shore docking security module (DSS), pipe-line system, device for recovering oil and gas
(VRU) and control system (DCS).After beaching, by the external interface of petroleum vapor recovery on oil tanker and harbour gas phase arm (hose)
It is connected, enters harbour gas gathering manifold after ship-to-shore docks security module (DSS), finally by oil-gas transportation to device for recovering oil and gas
(VRU) it is recycled.
In harbour gas recovery system for oil, connection between ship and bank system (interface/delivery system) is at connection ship and petroleum vapor recovery
The critical system managed device, guarantee ship and terminal facilities safety.In actually construction and use process, segment terminal is directly sharp
Ship is connect with oil gas collecting device with pipeline and flange, not set required safety guarantee facility, to make petroleum vapor recovery
There are potential security risks.Nansha build the built device for recovering oil and gas on the ground such as great waves, Dongguan, Guangdong just as harbour ship-to-shore interface not
It is safe, lack of standardization, cause device to deactivate or do not check and accept.
The ship-to-shore interface system of harbour petroleum vapor recovery refers in tanker loading or unloading operation, collects oil gas from cargo hold
Or VOCs is to the ship of harbour device for recovering oil and gas and the coupling part of bank station, mainly includes being mounted on bank station wharf apron
Gas phase arm (hose) and ship-to-shore interface safety device.
Since ship-to-shore interface system is related to two aspects of ship and bank station, being related to safe practice also must include
Ship and the aspect of bank station two are respectively: 1. (ballasting gas) safety of the cabin gas on oil carrier and cabin oil gas collection pipeline
And the safe practice of modular connection；2. the gas transmission arm (hose) of wharf apron and the safe practice of ship-to-shore interface safety device.Its
In terms of principal risk source also includes oil carrier and in terms of harbour.In terms of oil carrier: cabin gas (ballasting gas) oxygen content is exceeded, ship
Fire explosion, ship drift, charge of oil overflow into aqueous slag inclusion of gas pipeline, oil gas etc..In terms of harbour: explosion-proof ability is poor,
Electrostatic conduction, thunder-lightning, blocking be not thorough, power off do not block, with oil transportation does not link, anti-misoperation performance is poor, lack flash hider,
Exhaust gas pipe height not enough, with shipboard operation is got in touch with unsmooth etc..
Summary of the invention
In view of the above technical problems, the present invention proposes a kind of harbour ship-to-shore interface safety device, can be widely applied to oil carrier
With chemical tanker load, unloading when petroleum vapor recovery ship-to-shore handover, meet it is various under the conditions of safety operation requirement.
In order to achieve the above technical purposes, the present invention uses following specific technical solution:
A kind of harbour ship-to-shore interface safety device, the safety device include main pipeline, are set on the main pipeline
Control system and following mechanism:
Manual isolation valve, on the pipeline after insulating flange is mounted in the form of flange or welding, for failure or urgent
In the case of hand off oil-gas transportation；
On the pipeline after being sequentially arranged at manual isolation valve, it is defeated to be used to indicate oil gas for pressure transmitter and site pressure table
Pressurization pressure；
Sampling valve on the pipeline after being mounted on site pressure table, is adopted for the pipeline gas sample during oil-gas transportation
Collection；
Filter, on the pipeline after being mounted on automatic stop valve, for filtering out mechanical admixture present in oil gas, filter
Pressure difference monitoring point is arranged in front and back, installs differential pressure transmitter；
First fire arrester, on the pipeline after being mounted on filter, when for preventing fire or explosion danger, flame
Sprawling；
Pressure vacuum bleed-off system is mounted on after the first fire arrester on the first vertical branch of main pipeline, the first vertical branch
Pipe is welded on main pipeline, and hand valve is arranged on the first vertical branch, and pressure vacuum valve is installed on the first vertical branch top, for defeated
Emergency blow-down or tonifying Qi when passing through journey superpressure or being spent lower than specified vacuum；
Oxygen content monitors system, including oxygen conten analyser and fills lazy/dilution system, described to fill lazy/dilution system installation
After pressure vacuum bleed-off system on the second vertical branch of main pipeline, the second vertical branch is welded on main pipeline, and second is vertical
First switch valve, gas flowmeter and quick coupling are set on branch pipe；Oxygen conten analyser is mounted on after filling lazy/dilution system
Main pipeline on, for the oxygen content in analyzing oil and gas；
On the main pipeline after being mounted on oxygen conten analyser, it is defeated to be used to indicate oil gas for temperature transmitter and scene temperature table
Temperature when sending；
Emergency blow-down system is mounted on after scene temperature table on main pipeline third vertical branch, the welding of third vertical branch
On main pipeline, second switch valve, the second fire arrester, rainhat are set on third vertical branch；
Automatic stop valve, on the pipeline after being mounted on sampling valve；
Liquid bleed-off system is mounted on duct bottom after emergency blow-down system, is one the with manually-operated gate the 4th vertical
Branch pipe drains into liquid closed collection system for will enter the liquid condensed before blower；
Blower, on the pipeline after being mounted on liquid bleed-off system, pipeline is connected with fans entrance, for in ship
Oil gas pressure-increasing unit is to device for recovering oil and gas；
Check-valves is mounted on fan outlet pipeline, is leapt up for preventing oil gas from returning from device for recovering oil and gas to oil carrier；
The control system, respectively with pressure transmitter, differential pressure transmitter, gas flowmeter, oxygen conten analyser, temperature
Transmitter, first switch valve, second switch valve, automatic stop valve and air-blower control connection；
Apparatus above integral skid mounting is loaded on a steel framework support, and steel framework support is provided with electrostatic grounding system
Electrostatic issuable in device is imported underground by system.
It is provided with pipe support support on the steel framework support, is used to support pipeline and relevant device, the installation of instrument, paving
If.
The filter is basket filter.
The control system is PLC control system.
A kind of harbour ship-to-shore interface oil gas transmission method, using harbour ship-to-shore interface safety device, specific steps are such as
Under:
One, install: insulating flange is connect with harbour gas phase recycling arm oil-gas pipeline, and oil gas enters ship-to-shore circle through oil-gas pipeline
Face safety device is not less than 2 ‰ pipeline by the gradient, successively passes through manual isolation valve, automatic stop valve, filter, first
Fire arrester, blower and check-valves enter gas-liquid separator；
Two, oxygen content monitors: oxygen conten analyser detects the oxygen content in oil gas automatically, when oxygen content is in quick-fried in pipeline
When in fried limit range, control system controls that automatic stop valve is closed and blower stops, and fills lazy/first opening of filling in dilution system
It closes valve to open, start to inert gas is poured in cabin, oxygen conten analyser data and gas flowmeter are interlocked, needed for calculating
The amount of inert gas poured；
Three, oil gas temperature monitoring: temperature transmitter in real time detects oil gas temperature in main pipeline, and will test
Temperature value is transferred to control system, is equipped with temperature threshold in control system, when the temperature value detected is more than temperature threshold Times
It warns and controls automatic stop valve closing, blower stops, and the second switch valve in emergency blow-down system is opened；
Four, oil-air pressure value monitors: pressure transmitter in real time detects the pressure of oil gas in main pipeline, and will test
To pressure value be transferred to control system, pressure threshold is equipped in control system, when the pressure value detected is more than pressure threshold
When, control system issues the sound-light alarm of superpressure or decompression to device operator, and controls automatic stop valve closing, and blower stops
Only, the second switch valve in emergency blow-down system is opened；
Five, pressure difference monitors: differential pressure transmitter in real time detects the pressure difference in main pipeline, and the pressure difference that will test
Signal is transferred to control system, sets pressure difference highest limit value in control system, when the pressure difference detected reaches highest limit value,
It controls automatic stop valve to close, blower stops, and manual isolation valve is turned off manually, clears up filter element, guarantees filtering
Device works normally.
A kind of beneficial effect of harbour ship-to-shore of the invention interface safety device is:
Be integrated on a sledge chassis insulating flange, device for pressure measurement, thief hatch, oil gas cutting system,
Filter, pressure/vacuum bleed-off system, fills lazy/dilution system, temperature transmitter, blowdown system, blower, ground connection system at fire arrester
A series of devices such as system, differential pressure transmitter, instrument signal and interlock connection in device are integrated in a PLC control system,
Form modular ship-to-shore interface security system.
In view of device for recovering oil and gas failure that may be present makes oil gas for the smooth effective progress for guaranteeing ship-loading operation
There is an effective discharge outlet, also for when preventing the frequent take-off of pressure vacuum valve or pressure vacuum valve take-off condition is not achieved
Artificial emptying, therefore emergency blow-down system is set.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of harbour ship-to-shore of the present invention interface safety device；
Fig. 2 is PLC control system of the present invention；
Wherein, 1- insulating flange, 2- manual isolation valve, 3- pressure transmitter, 4- site pressure table, 5- sampling valve, 6- mistake
Filter, 7- differential pressure transmitter, the first fire arrester of 8-, 9- hand valve, 10- pressure vacuum valve, 11- first switch valve, 12- gas flow
Meter, 13- gas fast joint, 14- oxygen conten analyser, 15- temperature transmitter, 16- scene temperature table, 17- second switch valve,
The second fire arrester of 18-, 19- rainhat, 20- automatic stop valve, 21- bleeder valve, 22- blower, 23- check-valves, 24- pipe support, 25-
Sledge chassis, 26- earthed system, 27-PLC control system.
Specific embodiment
With reference to the accompanying drawings of the specification with specific embodiment to a kind of technology of harbour ship-to-shore of the invention interface safety device
Scheme is described in further detail.
The gas transmission arm that the present invention is connect with oil carrier is connect by insulating flange with ship-to-shore interface safety device, ship-to-shore interface peace
Full device integral arrangement is as shown in figure -1, insulating flange 1, manual isolation valve 2, pressure transmitter 3, site pressure table 4, sampling valve
5, filter 6, differential pressure transmitter 7, the first fire arrester 8, hand valve 9, pressure vacuum valve 10, first switch valve 11, gas flowmeter
12, gas fast joint 13, oxygen conten analyser 14, temperature transmitter 15, scene temperature table 16, second switch valve 17, second hinder
Firearm 18, rainhat 19, automatic stop valve 20, bleeder valve 21, blower 22, check-valves 23, pipe support 24, sledge chassis 25, ground connection system
System 26, PLC control system 27.
In operation, insulating flange 1 recycles arm oil-gas pipeline with harbour gas phase or petroleum vapor recovery metal hose special is connect, oil
Gas is not less than 2 ‰ pipeline by the gradient, successively through receiving and distributing into ship-to-shore interface safety device through oil-gas pipeline/metal hose
Dynamic isolating valve 2, automatic stop valve 20, filter 6, the first fire arrester 8, blower 22 and check-valves 23 enter gas-liquid separator.
Oil is truncated when fire or explosion dangerous situation occurs for harbour or ship in manual isolation valve 2 and automatic stop valve 20 in time
Gas access prevents tissue disaster from expanding.
Pressure transmitter 3 and site pressure table 4 are set between manual isolation valve 2 and automatic stop valve 20, to monitor
Oil-air pressure, prevents in operation process that pressure is too high or too low in cabin.3 signal of pressure transmitter is into PLC control system, PLC
The highest and lowest pressure limit of set-up of control system, when in oil carrier cabin pressure beyond given pressure limit (or lower than scheduled
Pressure requirements) when, pressure signal triggers PLC interlocking, issues superpressure (decompression) sound-light alarm to device operator, and by interlocking journey
Sequence provides the oil gas automatic stop valve for the remote control operation that a specified signal is pumped and required with orderly close-down bank.
Sampling valve 5, analysis and detection for oil-gas component are set between manual isolation valve 2 and automatic stop valve 20.
Filter 6 is set gradually after automatic stop valve 20, for filtering out mechanical admixture that may be present in oil gas, prevents machine
Tool impurity enters fire arrester, influences fire arrester Fire resistances.
7 pressure point of differential pressure transmitter is set before and after filter 6, for measuring 6 front and back gas differential pressure of filter.Filter 6
Pressure difference monitoring point is arranged in front and back, installs differential pressure transmitter 7, and 7 signal of differential pressure transmitter can set pressure difference most into PLC control system
Ceiling value, when pressure difference reaches highest limit value, automatic stop valve 20 is automatically closed, and blower 22 stops, and manual isolation is turned off manually
Valve 2 clears up 6 filter core of filter, guarantees that filter 6 works normally.
First fire arrester 8 blocks the sprawling of burning or explosion for burning or explosion time to occur.
Pressure vacuum bleed-off system is set on the pipeline after the first fire arrester 8, is mounted on main pipeline after the first fire arrester
On first vertical branch, normally opened hand valve and pressure vacuum valve are installed on the first vertical branch, prevent cabin superpressure in operation process
Or it is lower than vacuum requirement.
Lazy/dilution system is filled in setting on pipeline after pressure vacuum bleed-off system, after being mounted on pressure vacuum bleed-off system
On the second vertical branch of main pipeline, the second vertical branch is welded on main pipeline, on the second vertical branch be arranged first switch valve,
Gas flowmeter and quick coupling, for before oil-gas transportation, topping up or diluent gas into cabin to guarantee that oil gas is dense
Degree is not in explosion limit.
Fill it is lazy/fill on the main line after carrier gas system branch pipe and oxygen conten analyser be installed, oxygen conten analyser is examined automatically
Survey oil gas in oxygen content, when oxygen content be within the scope of explosion limit, fill it is lazy/fill dilution system switch valve opening, beginning
Cabin is carried out to fill lazy dilution, the gas poured is generally nitrogen or inert gas, oxygen conten analyser data and fills lazy/dilution
Flow system flow meter interlocking, for calculating the amount of inert gas that need to be poured.First switch valve is automatic switch valve, controls system by PLC
System control on or off.
Temperature transmitter and scene temperature table are set after oxygen conten analyser, for monitoring the oil gas temperature for collecting defeated.Oxygen contains
Amount analyzer signal enters PLC control system, and oxygen upper concentration value is arranged in PLC control system, when oxygen concentration is higher than the upper limit
When concentration value, PLC issues instruction, and automatic stop valve 20 is automatically closed, and blower 22 stops, and first filled on lazy/dilution system opens
It closes valve 11 to open, starts to carry out nitrogen to cabin or inert gas is filling, dilution oxygen concentration, when oxygen concentration is dense lower than the upper limit
When angle value, fills lazy/dilution system first switch valve 11 and close.
The temperature transmitter 15 and scene temperature table 16, on the main pipeline after being mounted on oxygen conten analyser, for referring to
Show temperature when oil-gas transportation；15 signal of temperature transmitter enters PLC control system, and temperature sets a threshold limit value, is more than maximum
Limit alarm, starting interlock.
Emergency blow-down system is set after site pressure table, and emergency blow-down system is arranged on the bye-pass on main line, props up
Second switch valve and the second fire arrester are provided on pipeline, there is rainhat on delivery pipe top.When triggering dump condition, the
Two switch valves 17 are opened, and oil gas is from 17 discharger of second switch valve in urgent blowdown system.Second switch valve 17 is automatic
Switch valve is controlled by PLC control system and is opened or closed.
Blower is set after emergency blow-down system, a liquid bleeding device is set before blower, is a third for having bleeder valve
Vertical branch drains into liquid closed collection system for will enter the liquid condensed before blower.
Further, check-valves is arranged in fan outlet, prevents oil gas from returning and leaps up.
The automatic stop valve 20, on the pipeline after being mounted on sampling valve 5, in case of emergency automatically cutting off oil gas
Conveying.Automatic stop valve 20 is fire safe type, can be manually operated, and has the instruction of visual valve job site situation or design on the spot
At being easy to judge the job site situation of valve by handle or stem position, valve is issued in PLC control system and closes instruction
Shi Hou, valve should be able to close in 10s；If signal out of hand, valve are automatically closed.
For whole device through pipe support integrated installation on steel sledge chassis, static grounding system is arranged on chassis in steel sledge,
Electrostatic issuable in device is imported into underground.
As shown in Fig. 2, the switch shape of remote transfer signal all in PLC control system integrated system in the present invention, switch valve
State and logical interlock.
Wherein, pressure sensor 3, differential pressure transmitter 7, fill lazy/dilution system switch valve 11, gas flowmeter 12, oxygen and contain
It is equal to measure analyzer 14, temperature transmitter 15, emergency blow-down system switching valve 17, automatic stop valve 20, the various types of signal of blower 22
It is connected with PLC control system 27.
The course of work of PLC control system of the present invention is:
1) when 14 oxygen content of oxygen conten analyser is exceeded, automatic stop valve 20 is automatically closed, and blower 22 stops, and is filled lazy/dilute
First switch valve 11 on release system is opened, and starts to carry out filling lazy, dilution to cabin；
2) when temperature transmitter 15 indicates temperature exceeding standard, automatic stop valve 20 is automatically closed, and blower 22 stops, emergency blow-down
Second switch valve 17 in system is opened；
3) when pressure transmitter 3 indicates that pressure is exceeded, automatic stop valve 20 is automatically closed, and blower 22 stops, emergency blow-down
Second switch valve 17 in system is opened；
4) when being switched on, automatic stop valve 20 and blower 22 are successively opened；
5) when shutting down, blower 22 and automatic stop valve 20 are successively closed；
6) when 7 superpressure of differential pressure transmitter, automatic stop valve 20 is closed, and blower 22 is closed, and manual isolation valve 2 is turned off manually,
Replacement or cleaning 6 filter core of filter；
7) when receiving other specified signals, automatic stop valve 20 is closed, and blower 22 is closed.
Claims (5)
1. a kind of harbour ship-to-shore interface safety device, the safety device includes main pipeline, the control that is set on the main pipeline
System processed and following mechanism:
Manual isolation valve on the pipeline after being mounted on insulating flange in the form of flange or welding, is used for failure or emergency
Lower hand off oil-gas transportation；
Pressure transmitter and site pressure table on the pipeline after being sequentially arranged at manual isolation valve, are used to indicate oil-gas transportation pressure
Power；
Sampling valve, on the pipeline after being mounted on site pressure table, for the pipeline gas sample acquisition during oil-gas transportation；
Filter is mounted on the pipeline of manual isolation valve, for filtering out mechanical admixture present in oil gas, is set before and after filter
Pressure difference monitoring point is set, differential pressure transmitter is installed；
First fire arrester, on the pipeline after being mounted on filter, when for preventing fire or explosion danger, flame it is climing
Prolong；
Pressure vacuum bleed-off system is mounted on after the first fire arrester on the first vertical branch of main pipeline, the weldering of the first vertical branch
It connects on main pipeline, hand valve is set on the first vertical branch, and pressure vacuum valve is installed on the first vertical branch top, for conveying
Journey superpressure or emergency blow-down or tonifying Qi when being spent lower than specified vacuum；
Oxygen content monitors system, including oxygen conten analyser and fills lazy/dilution system, described to fill lazy/dilution system and be mounted on pressure
After power vacuum relief system on the second vertical branch of main pipeline, the second vertical branch is welded on main pipeline, the second vertical branch
Upper setting first switch valve, gas flowmeter and quick coupling；Oxygen conten analyser, the master being mounted on after filling lazy/dilution system
On pipeline, for the oxygen content in analyzing oil and gas；
Temperature transmitter and scene temperature table, on the main pipeline after being mounted on oxygen conten analyser, when being used to indicate oil-gas transportation
Temperature；
Emergency blow-down system is mounted on after scene temperature table on main pipeline third vertical branch, and third vertical branch is welded on master
On pipeline, second switch valve, the second fire arrester, rainhat are set on third vertical branch；
Automatic stop valve, on the pipeline after being mounted on sampling valve；
Liquid bleed-off system is mounted on duct bottom after emergency blow-down system, is the 4th vertical branch for having manually-operated gate,
Liquid closed collection system is drained into for the liquid condensed before blower will to be entered；
Blower, on the pipeline after being mounted on liquid bleed-off system, pipeline is connected with fans entrance, for oil gas in ship
Pressure-increasing unit is to device for recovering oil and gas；
Check-valves is mounted on fan outlet pipeline, is leapt up for preventing oil gas from returning from device for recovering oil and gas to oil carrier；
The control system, respectively with pressure transmitter, differential pressure transmitter, gas flowmeter, oxygen conten analyser, temperature pick-up
Device, first switch valve, second switch valve, automatic stop valve and air-blower control connection；
Apparatus above integral skid mounting is loaded on a steel framework support, and steel framework support is provided with static grounding system, will
Issuable electrostatic imports underground in device.
2. harbour ship-to-shore according to claim 1 interface safety device, which is characterized in that set on the steel framework support
It is equipped with pipe support support, is used to support pipeline and relevant device, the installation of instrument, laying.
3. harbour ship-to-shore according to claim 1 interface safety device, which is characterized in that the filter is basket filtering
Device.
4. harbour ship-to-shore according to claim 1 interface safety device, which is characterized in that the control system is PLC control
System processed.
5. a kind of harbour ship-to-shore interface oil gas transmission method, which is characterized in that utilize harbour ship-to-shore as described in claim 1 interface
Safety device, the specific steps are as follows:
One, install: insulating flange is connect with harbour gas phase recycling arm oil-gas pipeline, and oil gas, which enters ship-to-shore interface through oil-gas pipeline, pacifies
Full device is not less than 2 ‰ pipeline by the gradient, successively passes through manual isolation valve, automatic stop valve, filter, the first back-fire relief
Device, blower and check-valves enter gas-liquid separator；
Two, oxygen content monitors: oxygen conten analyser detects the oxygen content in oil gas automatically, when oxygen content is in explosion pole in pipeline
When limiting in range, control system controls that automatic stop valve is closed and blower stops, filling it is lazy/fill first switch valve in dilution system
It opens, starts to inert gas is poured in cabin, oxygen conten analyser data and gas flowmeter are interlocked, need to be poured for calculating
Amount of inert gas；
Three, oil gas temperature monitoring: temperature transmitter is in real time to the temperature that oil gas temperature is detected, and be will test in main pipeline
Value is transferred to control system, and temperature threshold is equipped in control system, when the temperature value detected is more than temperature threshold alarm, simultaneously
It controls automatic stop valve to close, blower stops, and the second switch valve in emergency blow-down system is opened；
Four, oil-air pressure value monitors: pressure transmitter in real time detects the pressure of oil gas in main pipeline, and will test
Pressure value is transferred to control system, is equipped with pressure threshold in control system, when the pressure value detected is more than pressure threshold, control
System processed issues the sound-light alarm of superpressure or decompression to device operator, and controls automatic stop valve closing, and blower stops, promptly
Second switch valve in blowdown system is opened；
Five, pressure difference monitors: differential pressure transmitter in real time detects the pressure difference in main pipeline, and the pressure difference value signal that will test
It is transferred to control system, sets pressure difference highest limit value in control system, when the pressure difference detected reaches highest limit value, control
Automatic stop valve is closed, and blower stops, and manual isolation valve is turned off manually, clears up filter element, is guaranteeing filter just
Often work.
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| CN107270129A (en) * | 2017-07-28 | 2017-10-20 | 连云港港口国际石化港务有限公司 | A kind of portable ship-to-shore security interface device |
| CN109384058A (en) * | 2017-08-09 | 2019-02-26 | 中国石油化工股份有限公司 | The collection method of chemicals shipment Volatile Gas |
| CN110030488A (en) * | 2019-04-30 | 2019-07-19 | 黄立亚 | A kind of transfusion system between LNG ship oceangoing ship and LNG tank case (or tank car) |
| CN113173226A (en) * | 2021-06-10 | 2021-07-27 | 新加坡导航亚洲有限公司 | Fluid transfer structure and fluid fuel supply system |
| CN113911269B (en) * | 2021-11-16 | 2024-03-08 | 江苏扬子三井造船有限公司 | Emergency cutting device of liquid cargo system |
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| CN105289194A (en) * | 2015-11-03 | 2016-02-03 | 中化兴中石油转运（舟山）有限公司 | Crude oil shipping oil and gas recycling method |
| CN105465602A (en) * | 2015-11-12 | 2016-04-06 | 中国石油化工股份有限公司 | Collection method for epoxy propane gas generated during ship-loading operation |
| CN205877716U (en) * | 2016-07-05 | 2017-01-11 | 上海杰桢海洋工程有限公司 | Be used for pier vapor recovery system facility ship bank butt joint safety device |
| CN206552213U (en) * | 2017-01-23 | 2017-10-13 | 江苏金门能源装备有限公司 | A kind of harbour ship-to-shore interface safety device |
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| CN106628011A (en) | 2017-05-10 |
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