CN106697657A - Extinguishing method and system for oil gas discharging pipe in cold vent system - Google Patents
Extinguishing method and system for oil gas discharging pipe in cold vent system Download PDFInfo
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- CN106697657A CN106697657A CN201611256341.0A CN201611256341A CN106697657A CN 106697657 A CN106697657 A CN 106697657A CN 201611256341 A CN201611256341 A CN 201611256341A CN 106697657 A CN106697657 A CN 106697657A
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- retardant gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
Abstract
The invention discloses an extinguishing method and system for an oil gas discharging pipe in a cold vent system. The extinguishing method for the oil gas discharging pipe in the cold vent system comprises the following step that when safe state information of the oil gas discharging pipe shows ignition, a flame-retarding gas supply device is started to discharge first flame-retarding gas into the oil gas discharging pipe for extinguishing treatment, wherein the first flame-retarding gas is delivered into the oil gas discharging pipe through a gas delivery pipe. According to the extinguishing method and system for the oil gas discharging pipe in the cold vent system, the content of oxygen in oil gas can be decreased, so that ignited oil gas in the oil gas discharging pipe is extinguished gradually, and the extinguishing purpose is achieved; and the using safety of the cold vent system is improved.
Description
Technical field
The disclosure relates generally to floating type production, storage and offloading device, and in particular to cold blowdown system, more particularly to cold emptying
The effective flameout method of exhaust of oil and its shutdown systems in system.
Background technology
FPSO (i.e. floating type production, storage and offloading device) be to exploit oil carry out Oil-gas Separation, treatment oil-polluted water,
Dynamic power, heat supply, the storage of crude oil products and transport, integrate personnel's inhabitation comprehensive big with the chain of command in production
Type offshore oil production base, due to its superior crude Treatment ability and functional diversity, receives marine oil and gas market
Favor.Wherein, FPSO is provided with cold emptying (cold vent) system, and cold blowdown system refers to the oil not being ignited on FPSO
The exhaust system of gas, such as oil tank ventilation system etc..According to《International Convention for the Safety of Life at Sea》It is required that, such system emission point
Positional distance burning things which may cause a fire disaster or the equipment of burning things which may cause a fire disaster and the air suction inlet at least 10m in cabin may be produced.In actual design mistake
Cheng Zhong, also wants integration project design feature in itself, and geographical environment (such as wind speed, wind direction, the temperature for considering working sea area
Deng) diffusion analysis is done to the exhaust system of big flow, to ensure that the oil gas for discharging will not be ignited.Nonetheless, in ocean
Some uncontrollable factors for causing cold blowdown system to be lighted are also contemplated that during middle operation, such as thunder and lightning, electrostatic, torch oil droplet are produced
" fire rain " etc..
At present, mainly there are two kinds for fire extinguishing processing mode, one kind is to reduce temperature, and one kind is to reduce oxygen content.And
For FPSO, the oil of cold emptying is needed to discharge because cold blowdown system uses the exhaust of oil pipe for tilting upward
Gas, and the length of exhaust of oil pipe is more long, can typically reach has the oil gas of outside circulation, pole always in more than more than ten meters, and pipe
The earth increased the difficulty of fire extinguishing.At present, it is main on FPSO that emergency cut-off is run with platform using oil and gas detection system alarm
Both systems fit system extinguishes the cold blowdown system being ignited, but can so influence the use and increase of cold blowdown system
Infringement to cold blowdown system.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, expect to provide in a kind of cold blowdown system that exhaust of oil is effective to be put out
Ignition method and its shutdown systems.
The present invention provides the effective flameout method of exhaust of oil in a kind of cold blowdown system, comprises the following steps：As oil gas row
When putting the safety state information of pipe to catch fire, startup fire-retardant gas feeding mechanism enters the first fire-retardant gas and enters to exhaust of oil pipe
The flame-out treatment of row, wherein the first fire-retardant gas are delivered in exhaust of oil pipe by appendix.
The present invention also provides a kind of shutdown systems, including for discharge the first fire-retardant gas fire-retardant gas feedway and
Appendix, includes the air inlet that is connected with fire-retardant gas feedway respectively on appendix, and for exhaust of oil Guan Lian
Logical gas outlet.
The effective flameout method of exhaust of oil and its shutdown systems in the cold blowdown system that the present invention is provided, in exhaust of oil pipe
When appearance is caught fire, the first fire-retardant gas are exported by fire-retardant gas feedway, the first fire-retardant gas are delivered to by appendix
In exhaust of oil pipe in cold blowdown system so that oil gas in the first fire-retardant gas and exhaust of oil pipe (predominantly hydrocarbonization
Compound) effectively mix, so as to dilute the content of oxygen in oil gas, so that the oil gas gas being ignited in exhaust of oil pipe
Body gradually extinguishes, and realizes flame-out purpose, also improves the usage safety performance of cold blowdown system.
Brief description of the drawings
By the detailed description made to non-limiting example made with reference to the following drawings of reading, the application other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is shutdown systems schematic diagram provided in an embodiment of the present invention.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that, in order to
It is easy to description, the part related to invention is illustrate only in accompanying drawing.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The application provides a kind of shutdown systems control method, comprises the following steps：When the safe condition of exhaust of oil pipe is believed
Cease during to catch fire, startup fire-retardant gas feeding mechanism enters the first fire-retardant gas and carries out flame-out treatment to exhaust of oil pipe, wherein
First fire-retardant gas are delivered in exhaust of oil pipe by appendix.
In the present embodiment, when there is Ignition Phenomena in exhaust of oil pipe, by start fire-retardant gas feeding mechanism to
Exhaust of oil pipe enters the first fire-retardant gas and carries out flame-out treatment.The first fire-retardant gas and air-fuel mixture are used in the present embodiment
To form mixed gas, and then the oxygen content in diluent crude oil gas is realized, the mesh of the oil gas being ignited gradually is extinguished to reach
, while also improve the security of fire-extinguishing operations, and extinguishing effect is substantially and low cost.
Preferably, entering the first fire-retardant gas to exhaust of oil pipe in startup fire-retardant gas feeding mechanism carries out flame-out treatment
Before, also include：Obtain the safety state information whether exhaust of oil pipe catches fire.
In FPSO, due to exhaust of oil Guan Zhonghui continued emissions oil gas, during exhaust of oil, fire-retardant gas supply dress
Put and enter fire-retardant gas to exhaust of oil pipe and carry out flame-out treatment.Exhaust of oil pipe be in without catch fire state when, the of discharge
One fire-retardant gas can reduce the content of oxygen in oil gas, and with anti-flaming effect, that further improves cold blowdown system uses safety
Performance.But it is limited based on the first fire-retardant gas laid in cost consideration and FPSO, so exhaust of oil pipe is first monitored in selection
The safe condition on road, when exhaust of oil pipe catches fire state in nothing, fire-retardant gas feeding mechanism is not started；When being the state of catching fire
When, due to inside exhaust of oil pipe constantly outwards discharge oil gas so that the oil gas for catching fire can the end of exhaust of oil pipe to
Outer ejection, will not now spread to top easily, and now the infringement to cold blowdown system is smaller.Supplied by starting fire-retardant gas
Device, is gradually extinguished the oil gas for catching fire using the first fire-retardant gas, flame-out purpose is realized, while it is fire-retardant to also reduce first
The loss of gas, extends the service life of shutdown systems.
Additionally, the mode for obtaining the safety state information whether exhaust of oil pipe catches fire has various, for example：Passed using temperature
Sensor is detected to the temperature of the end of exhaust of oil pipe, quickly raised suddenly when discovery temperature and more than preset temperature threshold
During value, processing unit will send the control signal for starting fire-retardant gas feeding mechanism, realize starting fire-retardant gas feeding mechanism
Carry out flame-out treatment etc..It is, of course, also possible to when finding that exhaust of oil pipe catches fire by way of artificial observation, artificially start fire-retardant
Gas supply device carries out flame-out treatment.
Preferably, entering the first fire-retardant gas to exhaust of oil pipe in startup fire-retardant gas feeding mechanism carries out flame-out treatment
Afterwards, also include：Fire-retardant gas feeding mechanism stops entering the first fire-retardant gas to exhaust of oil pipe.
In this embodiment, carry out entering the first fire-retardant gas to exhaust of oil pipe by starting fire-retardant gas feeding mechanism
After flame-out treatment, i.e., after the oil gas being ignited in exhaust of oil pipe is off, fire-retardant gas feeding mechanism just stops to oil
Gas delivery pipe enters the first fire-retardant gas, and the purpose of the first fire-retardant gas is used to realize saving.
Preferably, entering the first fire-retardant gas to exhaust of oil pipe in startup fire-retardant gas feeding mechanism carries out flame-out treatment
Before, also include：When the use state of fire-retardant gas feeding mechanism is for failure, start the standby feeding mechanism of fire-retardant gas to oil
Gas delivery pipe enters the second fire-retardant gas and carries out flame-out treatment, wherein the second fire-retardant gas are delivered to exhaust of oil by appendix
Guan Zhong；When the use state of fire-retardant gas feeding mechanism is effective, performs and start fire-retardant gas feeding mechanism to exhaust of oil
Pipe enters the first fire-retardant gas and carries out flame-out treatment.
In actual use, may be leaked due to the first fire-retardant gas, be finished or other failures so that fire-retardant gas
Body feeding mechanism is in failure state, i.e., cannot discharge the first fire-retardant gas, can so lose installation fire-retardant gas feeding mechanism
Meaning.In the present embodiment, in order to prevent the appearance of above mentioned problem, it is additionally arranged the standby feeding mechanism of fire-retardant gas to replace resistance
Combustion gas supply device, discharges the second fire-retardant gas, realizes extinguishing the function of the oil gas being ignited.
Preferably, the second fire-retardant gas are entered to exhaust of oil pipe in the startup standby feeding mechanism of fire-retardant gas to be stopped working
Before treatment, also include：Obtain the use state whether fire-retardant gas feeding mechanism fails.
In order to avoid the appearance of delays in work situation of stopping working caused by of failing due to fire-retardant gas feeding mechanism,
In this implementation, in the standby feeding mechanism of startup fire-retardant gas, the use whether failed of fire-retardant gas feeding mechanism is first obtained
State.When fire-retardant gas feeding mechanism is in failure state, the standby feeding mechanism of fire-retardant gas is started immediately carries out flame-out treatment,
When fire-retardant gas feeding mechanism is effective, just starting fire-retardant gas feeding mechanism carries out flame-out treatment.
Preferably, the second fire-retardant gas are entered to exhaust of oil pipe in the startup standby feeding mechanism of fire-retardant gas to be stopped working
After treatment, also include：The standby feeding mechanism of fire-retardant gas stops entering the second fire-retardant gas to exhaust of oil pipe.
In the present embodiment, the second fire-retardant gas is being entered to exhaust of oil pipe by starting the standby feeding mechanism of fire-retardant gas
Body is carried out after flame-out treatment, i.e., after the oil gas being ignited in exhaust of oil pipe is off, the standby feeding mechanism of fire-retardant gas is just
Stop entering the second fire-retardant gas to exhaust of oil pipe, the purpose of the second fire-retardant gas is used to realize saving.
Preferably, entering the first fire-retardant gas to exhaust of oil pipe in startup fire-retardant gas feeding mechanism carries out flame-out treatment
During, also include：When the use state of fire-retardant gas feeding mechanism is when effective status is changed into failure state, start fire-retardant gas
The standby feeding mechanism of body enters the second fire-retardant gas to exhaust of oil pipe.
In the present embodiment, the first fire-retardant gas are entered to exhaust of oil pipe in startup fire-retardant gas feeding mechanism to be put out
During fire treatment, and when the use state of fire-retardant gas feeding mechanism is when effective status is changed into failure state, i.e., fire-retardant gas
During flame-out treatment is carried out, the use state of fire-retardant gas feeding mechanism is changed into the shape that fails to body feeding mechanism from effective status
During state, now fire-retardant gas feeding mechanism cannot complete flame-out effect, now start the standby feeding mechanism of fire-retardant gas
The second fire-retardant gas are entered to exhaust of oil pipe, flame-out treatment is carried out.Additionally, when the standby feeding mechanism of startup fire-retardant gas,
Fire-retardant gas feeding mechanism can also stop starting.
Preferably, entering the first fire-retardant gas to exhaust of oil pipe in startup fire-retardant gas feeding mechanism carries out flame-out treatment
During, also include：Obtain the use state whether fire-retardant gas feeding mechanism fails.
In the present embodiment, startup fire-retardant gas feeding mechanism enters the first fire-retardant gas and is stopped working to exhaust of oil pipe
During treatment, i.e. fire-retardant gas feeding mechanism obtains fire-retardant gas feeding mechanism and loses during the first fire-retardant gas are discharged
The use state whether imitated.It is highly preferred that being continued to monitor to the use state of fire-retardant gas feeding mechanism.Such as when fire-retardant gas
The use state of body feeding mechanism shows that fire-retardant gas feeding mechanism breaks down when effective status is changed into failure state, that is,
In failure state.
Additionally, the mode for obtaining the use state of fire-retardant gas feeding mechanism has various, for example：Using sensor or stream
The devices such as gauge are detected to the fire-retardant gas flow in appendix, when the flow for finding fire-retardant gas is significantly reduced or is not had
Sometimes, processing unit will send the control signal for starting the standby feeding mechanism of fire-retardant gas, realize that startup fire-retardant gas are standby
Feeding mechanism carries out flame-out treatment etc..It is, of course, also possible to extinguishing effect in observing exhaust of oil pipe by way of artificial observation,
When extinguishing effect substantially weakens or do not have effect, just can start the standby feeding mechanism of fire-retardant gas carries out flame-out treatment etc..
Fig. 1 is refer to, the application also provides a kind of cold blowdown system shutdown systems, including for exporting the first fire-retardant gas
The fire-retardant gas feedway 1 and appendix of body, include the air inlet connected with fire-retardant gas feedway 1 respectively on appendix
Mouthful, and the gas outlet for being connected with exhaust of oil pipe 3.
The cold blowdown system shutdown systems that the application is provided, the first fire-retardant gas is exported by fire-retardant gas feedway 1
Body, in the exhaust of oil pipe 3 that the first fire-retardant gas are delivered in cold blowdown system by appendix so that the first fire-retardant gas with
Oil gas (predominantly hydrocarbon) in exhaust of oil pipe 3 effectively mixes, so as to dilute the content of oxygen in crude oil gas,
So that the oil gas gas being ignited in exhaust of oil pipe 3 gradually extinguishes, flame-out purpose is realized, improve cold emptying system
The usage safety performance of system.
Preferably, the first fire-retardant gas are preferably CO2。
In the present embodiment, due to CO2Have the advantages that not help right, non-combustible, easy acquisition, easily store, in the present embodiment
Fire-retardant gas are preferably CO2.Certainly, the first fire-retardant gas are not limited to CO2, such as helium, nitrogen.Meanwhile, second is fire-retardant
Gas is preferably also CO2.When actually used, due to cold emptying gas main component be hydrocarbon, in order to reach compared with
Good extinguishing effect, controls CO2The amount of release should be CO2The 82% of the mixed gas blended together with cold emptying oil gas, cold emptying oil gas
It is the 18% of mixed gas.
Preferably, gas pressurized device 4 is provided with appendix.
In the present embodiment, due to relatively flat in appendix and length is more long, pipe diameter size is almost unchanged so that
The pressure very little that one fire-retardant gas are subject in gas transmission pipe end, causes the first fire-retardant gas to enter exhaust of oil in outflow appendix
Kinetic energy is less, poor with air-fuel mixture degree in exhaust of oil pipe 3 during pipe 3, can so weaken fire-retardant effect.In order that
Both mixing are abundant, and increasing in appendix has gas pressurized device 4 so that the first fire-retardant gas are by gas pressurized device
Pressure increases when 4, and then causes the pressure relative increase that is subject in gas transmission pipe end of the first fire-retardant gas, has during discharge larger
Kinetic energy so that both can be sufficiently mixed, and the effect of dilution oxygen is obvious.
Preferably, gas pressurized device 4 includes restricting orifice.
In the present embodiment, gas pressurized device 4 includes restricting orifice, and restricting orifice is arranged in appendix.Throttle orifice
Plate is provided with throttle orifice, is subject to resistance, flow velocity to increase when the first fire-retardant gas are by throttle orifice, and pressure diminishes, then as
When first fire-retardant gas pass through restricting orifice, circulating area becomes big, and flow velocity declines, and pressure increases, and then causes to enter oil gas row
The the first fire-retardant gas flow velocity put in pipe 3 increases, with larger kinetic energy so that both can be sufficiently mixed, dilution oxygen
Effect is obvious.Certainly gas pressurized device 4 is not limited to restricting orifice here, and such as gas boosting pump all may be used.
Preferably, appendix includes main appendix 21 and the gas transmission branch pipe 22 stretched out along main appendix 21, gas transmission
Branch pipe 22 is provided with gas outlet.
In the present embodiment, in order to increase flame-out effect, appendix includes main appendix 21 and along main appendix 21
The gas transmission branch pipe 22 for stretching out, gas transmission branch pipe 22 is connected with main appendix 21, and gas transmission branch pipe 22 is provided with gas outlet, gas outlet
Connected with exhaust of oil pipe 3.First fire-retardant gas are by main appendix 21 and branch to each gas transmission branch pipe 22, and defeated by each
Gas branch pipe 22 is input into the tunnel of exhaust of oil pipe 3.Using above-mentioned design, can with and increase between the first fire-retardant gas and oil gas
Mixing contact point, and then contact area is increased, the mixed effect between the first fire-retardant gas and oil gas is improved, significantly dilute oxygen
Gas, improves extinguishing effect.Additionally, when cold blowdown system goes wrong, it is impossible to which during continued emissions oil gas, the intensity of a fire occurs reversely
Spread, but during reversely spreading, due to pass through each gas transmission branch pipe 22 so that during spreading, the intensity of a fire also can be by
Extinguish, efficiently avoid reversely spreading for the intensity of a fire.
Preferably, it is provided with gas pressurized device 4 in each gas transmission branch pipe 22.
In the present embodiment, it is provided with gas pressurized device 4 in each gas transmission branch pipe 22 so that defeated in each gas transmission branch pipe 22
The first fire-retardant gas entered in exhaust of oil pipe 3 all have preferable kinetic energy, and multiple spot connects between the first fire-retardant gas and oil gas
Touch on the basis of mixing, further such that being sufficiently mixed between the two, further increase mixed effect, improve flame-out effect.
Preferably, gas transmission branch pipe 22 is arranged side by side along the length direction of main appendix 21.
In the present embodiment, gas transmission branch pipe 22 is arranged side by side along the length direction of main appendix 21, may be such that in oil gas row
The oil gas in pipe 3 is put in discharge, each gas transmission branch pipe 22 is sequentially passed through, realizes that the first fire-retardant gas repeatedly with output are contacted
Mixing, further improves mixed effect.Meanwhile, when cold blowdown system goes wrong, it is impossible to during continued emissions oil gas, intensity of a fire meeting
Appearance reversely spreads, but during reverse spreading, due to will be by each gas transmission branch pipe 22 successively so that spreading process
In, the intensity of a fire can also be off, and efficiently avoid reversely spreading for the intensity of a fire.
Preferably, between the gas outlet on adjacent gas transmission branch pipe 22 distance at intervals of 3 meters, restricting orifice is provided with 4 throttlings
Hole, each throttle orifice is 0.2cm in the effective area in the radial direction of appendix2。
In the present embodiment, 4 gas transmission branch pipes 22, and the preferred connection of gas transmission branch pipe 22 are evenly arranged with main appendix 21
At intervals of 3 meters, restricting orifice is provided with 4 to distance between the gas outlet on the end of exhaust of oil pipe 3, adjacent gas transmission branch pipe 22
Throttle orifice and preferably matrix arrangement, the effective area of each throttle orifice is 0.2cm2, enable to the resistance of the first fire-retardant gas
Combustion effect reaches preferable effect.Here the effective area of throttle orifice can be regarded as：Axle of the throttle orifice perpendicular to gas transmission branch pipe 22
Line is set.
Preferably, shutdown systems also include the standby feedway 5 of fire-retardant gas, air inlet supply dress standby with fire-retardant gas
Put 5 connections.
When the oil gas of the cold emptying to being ignited is put out a fire, if fire-retardant gas feedway 1 breaks down can not arrange
Go out the first fire-retardant gas or in the case that the first fire-retardant gas run out, because exhaust of oil remains unchanged continuation, the intensity of a fire can be more next
It is bigger, huge infringement can be caused to cold blowdown system.In the present embodiment, in order to avoid above mentioned problem, cold blowdown system is used
Shutdown systems, in the case where fire-retardant gas feedway 1 fails, can be replaced by setting the standby feedway 5 of fire-retardant gas
Fire-retardant gas feedway 1 persistently provides the second fire-retardant gas to realize flame-out effect to cold emptying oil gas.
Preferably, shutdown systems also include attemperator, and attemperator includes casing 61, the standby feedway of fire-retardant gas
5 and fire-retardant gas feedway 1 be arranged in casing 61；And for the heater 62 and heater 62 of heating compartment 61
The temperature controller 63 of connection.
In the present embodiment, fire-retardant gas are with CO2As a example by, CO2Storage condition it is as follows：Pressure is 5171kpa, liquid shape
Formula is stored in the steel cylinder of repeatable filling.In fire-retardant gas feedway 1 and the standby feedway 5 of fire-retardant gas it is interior including
Multiple is above-mentioned to contain liquid CO2Steel cylinder, its particular number can be according to the flow of cold emptying and CO2The Time Calculation of release is obtained.
Attemperator includes storage liquid CO2Casing 61, and the heater 62 for heating to the internal environment of casing 61, with
And for detecting temperature and the temperature controller 63 of the control work of heater 62 in casing 61.Temperature controller 63 includes temperature-sensitive
Unit and processing unit, temperature-sensitive unit be used for obtain temperature value in casing 61, be provided with processing unit lowest temperature angle value with most
High temperature value, such as 21 DEG C of lowest temperature angle value, such as 22 DEG C of maximum temperature value.When temperature value is less than 21 DEG C, processing unit in casing 61
Control heater 62 begins to warm up, and its temperature is reached 22 DEG C of post-processing unit control heaters 62 and stops heating, to cause liquid
Body CO2Storage temperature between 21 DEG C -22 DEG C, to be easy to liquid CO2Steel cylinder one open after will output gas CO2, to carry
The delivery efficiency of high fire-retardance gas.
Preferably, cold blowdown system shutdown systems also include temperature-sensitive unit, the temperature for obtaining the end of exhaust of oil pipe 3
Angle value, including temperature sensor, amplifying circuit and analog-digital converter etc.；And processing unit, such as PLC, single-chip microcomputer.When obtaining
When the temperature value for taking is more than default temperature threshold, show that Ignition Phenomena occurs in the end of exhaust of oil pipe 3, processing unit is by control
Warning element work processed, to inform that staff starts fire-retardant gas feeding mechanism, or processing unit directly controls fire-retardant gas
The startup of body feeding mechanism.Cold blowdown system shutdown systems may also include flowmeter, for obtaining the fire-retardant gas in appendix
The flow value of body.When the flow value of fire-retardant gas is less than default flow threshold, processing unit is by controlling warning element work
Make, to inform that staff starts the standby feeding mechanism of fire-retardant gas, or processing unit directly controls the standby confession of fire-retardant gas
Answer the startup of device.
The standby feedway of fire-retardant gas is identical with fire-retardant gas feedway structure, it may include steel cylinder, be stored in steel cylinder
Middle CO2, steel cylinder be provided with exhaust nozzle and start exhaust nozzle opening device.The standby feedway of fire-retardant gas is ability
In the prior art in domain, do not repeating herein.
Applicants contemplate that the application provide cold blowdown system in the effective flameout method of exhaust of oil and its shutdown systems
For pair as if tens of meters of length and the setting that is inclined upwardly pipeline, and lasting discharge has inflammable oil gas in pipeline, and existing
Some fire-smothering gears is different, and existing extinguishing device is directed to place or the equipment of relative closure, Liang Zhexian
So there is obvious difference, those skilled in the art are not in the case where creative work is played, it is impossible to which traditional gas goes out
Fiery device is applied in blast pipe.
It is to be appreciated that such as relate to above term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " preceding ",
" afterwards ", the orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " be based on
Orientation shown in the drawings or position relationship, are for only for ease of and describe of the invention and simplify description, rather than instruction or hint institute
The device or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this hair
Bright limitation.Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relatively important
Property or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Person implicitly includes one or more this feature.In the description of the invention, unless otherwise indicated, " multiple " is meant that
Two or more.
Above description is only the preferred embodiment and the explanation to institute's application technology principle of the application.People in the art
Member is it should be appreciated that involved invention scope in the application, however it is not limited to the technology of the particular combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where the inventive concept is not departed from, is carried out by above-mentioned technical characteristic or its equivalent feature
Other technical schemes for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (15)
1. the effective flameout method of exhaust of oil in a kind of cold blowdown system, it is characterised in that comprise the following steps：
Obtain the safety state information whether exhaust of oil pipe catches fire；
When the safety state information of exhaust of oil pipe is to catch fire, starts fire-retardant gas feeding mechanism and enter the to exhaust of oil pipe
One fire-retardant gas carry out flame-out treatment, wherein first fire-retardant gas are delivered in the exhaust of oil pipe by appendix.
2. the effective flameout method of exhaust of oil in cold blowdown system according to claim 1, it is characterised in that opened described
Dynamic fire-retardant gas feeding mechanism is entered after the first fire-retardant gas carry out flame-out treatment to exhaust of oil pipe, is also included：
The fire-retardant gas feeding mechanism stops entering first fire-retardant gas to the exhaust of oil pipe.
3. the effective flameout method of exhaust of oil in cold blowdown system according to claim 1, it is characterised in that opened described
Dynamic fire-retardant gas feeding mechanism is entered before the first fire-retardant gas carry out flame-out treatment to exhaust of oil pipe, is also included：
Obtain the use state whether the fire-retardant gas feeding mechanism fails；
When the use state of the fire-retardant gas feeding mechanism is for failure, start the standby feeding mechanism of fire-retardant gas to the oil
Gas delivery pipe enters the second fire-retardant gas and carries out flame-out treatment, wherein second fire-retardant gas be delivered to by appendix it is described
In exhaust of oil pipe；
When the use state of the fire-retardant gas feeding mechanism is effective, the startup fire-retardant gas feeding mechanism is performed to oil
Gas delivery pipe enters the first fire-retardant gas and carries out flame-out treatment.
4. the effective flameout method of exhaust of oil in cold blowdown system according to claim 3, it is characterised in that opened described
The dynamic standby feeding mechanism of fire-retardant gas is entered after the second fire-retardant gas carry out flame-out treatment to the exhaust of oil pipe, is also wrapped
Include：
The standby feeding mechanism of fire-retardant gas stops entering second fire-retardant gas to the exhaust of oil pipe.
5. the effective flameout method of exhaust of oil in cold blowdown system according to claim 4, it is characterised in that opened described
Dynamic fire-retardant gas feeding mechanism is entered during the first fire-retardant gas carry out flame-out treatment to exhaust of oil pipe, is also included：
Obtain the use state whether the fire-retardant gas feeding mechanism fails；
When the use state of the fire-retardant gas feeding mechanism is when effective status is changed into failure state, start the fire-retardant gas
Standby feeding mechanism enters second fire-retardant gas to the exhaust of oil pipe.
6. in a kind of cold blowdown system implemented described in claim 1-5 any one the effective flameout method of exhaust of oil it is flame-out
System, it is characterised in that including fire-retardant gas feedway and appendix for discharging the first fire-retardant gas, the appendix
The upper air inlet for including being connected with the fire-retardant gas feedway respectively, and the outlet for being connected with exhaust of oil pipe
Mouthful.
7. shutdown systems according to claim 6, it is characterised in that first fire-retardant gas include CO2。
8. shutdown systems according to claim 6, it is characterised in that be provided with gas pressurized device in the appendix.
9. shutdown systems according to claim 8, it is characterised in that the gas pressurized device includes restricting orifice.
10. shutdown systems according to claim 9, it is characterised in that the appendix includes main appendix and along institute
The gas transmission branch pipe that main appendix stretches out is stated, the gas transmission branch pipe is provided with the gas outlet.
11. shutdown systems according to claim 10, it is characterised in that be provided with the gas in each described gas transmission branch pipe
Supercharging device.
12. shutdown systems according to claim 10, it is characterised in that the gas transmission branch pipe along the main appendix length
Degree direction is arranged side by side.
13. shutdown systems according to claim 11, it is characterised in that between the gas outlet on the adjacent gas transmission branch pipe
At intervals of 3 meters, the restricting orifice is provided with 4 throttle orifices to distance, each described throttle orifice the appendix radially
Effective area is 0.2cm2。
14. shutdown systems according to claim 6, it is characterised in that described also including the standby feedway of fire-retardant gas
Air inlet is connected with the standby feedway of the fire-retardant gas.
15. shutdown systems according to claim 14, it is characterised in that also including attemperator, the attemperator bag
Casing is included, the standby feedway of fire-retardant gas and the fire-retardant gas feedway are arranged in the casing；And
The temperature controller of heater and the heater connection for heating compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611256341.0A CN106697657A (en) | 2016-12-30 | 2016-12-30 | Extinguishing method and system for oil gas discharging pipe in cold vent system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611256341.0A CN106697657A (en) | 2016-12-30 | 2016-12-30 | Extinguishing method and system for oil gas discharging pipe in cold vent system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106697657A true CN106697657A (en) | 2017-05-24 |
Family
ID=58905269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611256341.0A Pending CN106697657A (en) | 2016-12-30 | 2016-12-30 | Extinguishing method and system for oil gas discharging pipe in cold vent system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106697657A (en) |
Citations (4)
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|---|---|---|---|---|
| CN1139015A (en) * | 1996-04-22 | 1997-01-01 | 安素公司 | Gaseous fire extinguishing system |
| JP2004284632A (en) * | 2003-03-20 | 2004-10-14 | Patent Pool:Kk | Oil home tank vent pipe with freeze preventive cover |
| CN1915459A (en) * | 2005-03-14 | 2007-02-21 | 基德Ip控股有限公司 | Fire suppression system |
| CN105498117A (en) * | 2016-01-20 | 2016-04-20 | 王玉伟 | Isolation fire-fighting device |
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2016
- 2016-12-30 CN CN201611256341.0A patent/CN106697657A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1139015A (en) * | 1996-04-22 | 1997-01-01 | 安素公司 | Gaseous fire extinguishing system |
| JP2004284632A (en) * | 2003-03-20 | 2004-10-14 | Patent Pool:Kk | Oil home tank vent pipe with freeze preventive cover |
| CN1915459A (en) * | 2005-03-14 | 2007-02-21 | 基德Ip控股有限公司 | Fire suppression system |
| CN105498117A (en) * | 2016-01-20 | 2016-04-20 | 王玉伟 | Isolation fire-fighting device |
Non-Patent Citations (1)
| Title |
|---|
| 林国锋 等: "海上平台冷放空系统二氧化碳灭火释放量的设计", 《安全与环境工程》 * |
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Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |