CN110207021A - Based on liquid phase pilot and the quick leakage warning liquid CO of energy2Manage defeated system and method - Google Patents
Based on liquid phase pilot and the quick leakage warning liquid CO of energy2Manage defeated system and method Download PDFInfo
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- CN110207021A CN110207021A CN201910219585.9A CN201910219585A CN110207021A CN 110207021 A CN110207021 A CN 110207021A CN 201910219585 A CN201910219585 A CN 201910219585A CN 110207021 A CN110207021 A CN 110207021A
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- 239000007788 liquid Substances 0.000 title claims abstract description 251
- 239000007791 liquid phase Substances 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000243 solution Substances 0.000 claims description 66
- 239000003795 chemical substances by application Substances 0.000 claims description 39
- 239000003245 coal Substances 0.000 claims description 26
- 238000002347 injection Methods 0.000 claims description 18
- 239000007924 injection Substances 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 15
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 14
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 230000000007 visual effect Effects 0.000 claims description 10
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 8
- 239000001110 calcium chloride Substances 0.000 claims description 8
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 8
- 230000004907 flux Effects 0.000 claims description 7
- 239000011780 sodium chloride Substances 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 6
- 230000010412 perfusion Effects 0.000 claims description 5
- 238000009834 vaporization Methods 0.000 claims description 5
- 230000008016 vaporization Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- VNFVKWMKVDOSKT-LREBCSMRSA-N (2r,3r)-2,3-dihydroxybutanedioic acid;piperazine Chemical compound C1CNCCN1.OC(=O)[C@H](O)[C@@H](O)C(O)=O VNFVKWMKVDOSKT-LREBCSMRSA-N 0.000 claims 1
- 229910052738 indium Inorganic materials 0.000 claims 1
- 239000005431 greenhouse gas Substances 0.000 abstract description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 127
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 18
- 238000002485 combustion reaction Methods 0.000 description 7
- 230000002269 spontaneous effect Effects 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000009172 bursting Effects 0.000 description 4
- 235000011089 carbon dioxide Nutrition 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910052756 noble gas Inorganic materials 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000009919 sequestration Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000012089 stop solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/12—Arrangements for supervising or controlling working operations for injecting a composition into the line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses one kind based on liquid phase pilot and the quick leakage warning liquid CO of energy2Defeated system and method are managed, greenhouse gases CO is belonged to2The underground space is sealed up for safekeeping and technical field of mine safety.It mainly includes liquid CO2Supply unit, liquid phase pilot supply unit, liquid phase pilot prepare unit, warning agent supply unit and alarm master control platform；Liquid phase pilot prepares unit and is used to provide pilot liquid into liquid phase pilot supply unit；Liquid CO2Supply unit is used for liquid CO2CO is conveyed in delivery pipe2；Liquid phase pilot supply unit is used in liquid CO2Supply unit conveys CO2Forward direction liquid CO2Pilot liquid is inputted in delivery pipe, and in liquid CO2Supply unit conveys CO2Later again to liquid CO2Pilot liquid is inputted in delivery pipe.
Description
Technical field
The present invention relates to greenhouse gases CO2The underground space is sealed up for safekeeping and technical field of mine safety, and in particular to a kind of energy is fast
Fast leakage warning liquid CO2Manage defeated system and method.
Background technique
With CO2Based on continuing to increase for greenhouse gas emissions bring serious harm to the living environment of the mankind, be
Countries in the world are needed to be badly in need of the project solved jointly.To reduce CO in global atmosphere2Content, CO2Capture and processing receive
More and more concerns, CO2(CCS) technology is trapped and seals up for safekeeping to be expected to become extensive reduction CO2That discharges is most cost-benefit
Technology.The goaf formed after coal mining is CO2Underground sequestration provide huge space.Research is from coal mine ground to underground
The safe and stable conveying CO in goaf2System and method for be realize goaf efficiently seal CO up for safekeeping2Premise.
Coal spontaneous combustion is one of the Major Natural Disasters in coal mine.Coal spontaneous combustion is primarily due to the oxygen in coal and air and generates
The physical and chemical process of a series of complex, and the rate of heat production of the process is greater than the rate of heat dispation to coal ambient enviroment,
The slow aggregation for generating heat, so that coal be made to reach burning point and burn.Liquid CO is perfused to flame range2It can reduce rapidly in flame range
Oxygen concentration, inhibit the physical and chemical process of coal and oxygen, to realize prevention and treatment to coal spontaneous combustion disaster.Meanwhile in coal mine
After spontaneous combustion occurs for the dump of goaf flame range, since the thermal coefficient of coal and the rock of surrounding itself is small and coal petrography heap is empty
Containing the gas that can be kept the temperature to coal and rock in gap, even if in the inert gas environment of almost anaerobic, the cooling of high temperature dump
Also very slowly once supplying oxygen again, re-ignition can occur rapidly for rate.
The generation of the security risks such as coal spontaneous combustion in order to prevent, correlative study person achieve certain research achievement, existing
Mainly there is related research report in technology:
CN108979705A discloses a kind of underground coal mine coupling noble gas preventing and extinguishing fire technology, the method and step which uses
Are as follows: it calculates coupling noble gas and injects flow；The low temperature stainless steel flexible hose of liquefied carbon dioxide tank vehicle is connected dioxy by goaf pipe laying
Change carbon vaporizer, nitrogen is transported to noble gas coupler, after gaseous carbon dioxide and nitrogen are coupled in noble gas coupler
Continuously transport to work face goaf fire extinguishing；Goaf gas detection, because the specific gravity of the inert gas after coupling is increased to ratio
When air specific weight is big, the flowing in goaf is slow, is not easy to be taken away by goaf air leaking, controls and bets in carbon dioxide sensor
Enter the health that suitable amount does not endanger worker, when the oxygen concentration when goaf is reduced to 7% or less, would not send out naturally
Fire.To goaf pressure injection liquid CO2Afterwards, CO2Phase transformation absorbs a large amount of heat, can promote the fast cooling of high temperature dump.Therefore, prevent
Coal spontaneous combustion disaster is controlled, to goaf pressure injection liquid CO2It is good method.
It reduces greenhouse gas emission and mine coal spontaneous combustion hazard management is required to persistently convey liquid from ground to underground coal mine
State CO2.However, liquid CO2Long distance delivery can have the following problems: initial delivery liquid CO2When, liquid CO2Into room temperature
It can rapid vaporization formation dry ice, easily blocking pipeline in the pipeline of normal pressure；Liquid CO2Conveyance conduit is easy to happen corrosion and reveals, and one
Denier is revealed, and CO2 concentration improves rapidly in underworkings, reduces oxygen concentration in air, is easy to happen the accidents such as asphyxia.
Summary of the invention
The purpose of the present invention is to provide one kind based on liquid phase pilot and the quick leakage warning liquid CO of energy2Manage defeated system and
Liquid CO can be improved in method2The safety in program is perfused, realizes mine fire extinguishing and safety continuous conveys liquid CO2。
One of task of the invention is to provide one kind based on liquid phase pilot and the quick leakage warning liquid CO of energy2Manage defeated system
System, which employs following technical solutions:
One kind is based on liquid phase pilot and the quick leakage warning liquid CO of energy2Manage defeated system comprising liquid CO2Supply unit
And the liquid CO set from coal mine ground to underground goaf on tunnel wall surface upper berth2Delivery pipe and signal wire further include that liquid phase is led
Supply unit, liquid phase pilot is pressed to prepare unit, warning agent supply unit and alarm master control platform；
The liquid phase pilot prepares unit and is used to provide pilot liquid into liquid phase pilot supply unit；
The liquid CO2Supply unit is used for the liquid CO2CO is conveyed in delivery pipe2；
The liquid phase pilot supply unit is used in the liquid CO2Supply unit conveys CO2Forward direction described in liquid
State CO2Pilot liquid is inputted in delivery pipe, and in the liquid CO2Supply unit conveys CO2Later again to described
Liquid CO2Pilot liquid is inputted in delivery pipe；
The warning agent supply unit and the liquid CO2Supply unit is together to the liquid CO2In delivery pipe
Convey CO2With warning agent, the warning agent is used to transmit signal to signal wire, and is controlled by the alarm master control platform
Whether liquid CO is inputted2。
As a preferred solution of the present invention, above-mentioned liquid CO2Supply unit includes liquid CO2It storage tank and is connected to
Liquid CO2First connecting pipe at outlet end, the other end of above-mentioned first connecting pipe connect above-mentioned liquid CO2Conveying
Pipe, is disposed with liquid CO in the first above-mentioned connecting pipe from front to back2Flow valve, mixer, liquid CO2Dedicated increasing
Press pump, liquid CO2Pressure maintaining valve, in above-mentioned liquid CO2The outlet end of pressure maintaining valve is connected with liquid CO2Non-return valve, above-mentioned liquid
CO2Non-return valve only allows liquid CO2By liquid CO2Pressure maintaining valve single flow direction liquid CO2Delivery pipe.
As another preferred embodiment of the invention, above-mentioned liquid CO2End outlet embedment of the delivery pipe in underground is adopted
Dead zone 20-60 meters, above-mentioned liquid CO2Delivery pipe is equipped with pressure gauge on well in arrival end；Above-mentioned liquid CO2Delivery pipe exists
2-20 meters of position is separately installed with down-hole pressure table and pipe outlet flow valve before embedment goaf.
Further, above-mentioned liquid CO2Delivery pipe is the seamless carbon steel pipes that diameter is 20-50mm, above-mentioned liquid
CO2Delivery pipe is equipped with a pressure reducer every 300 meter amperes in the vertical section between coal mine ground and goaf, above-mentioned
Liquid CO2Delivery pipe is equipped with a high pressure resistant metal every 400-500 meter ampere on the horizontal pipe section being located near goaf
Hose, the distance between steel pipe that above-mentioned high pressure metal hose both ends are connected are 0.5 meter, and above-mentioned high pressure resistant metal is soft
The length of pipe is 0.8 meter.
Further, above-mentioned liquid CO2Several solenoid valves are installed in delivery pipe, between adjacent solenoid valve away from
From being 200 meters, and SF is installed on the signal wire of the relative position of each solenoid valve6Combined aural and visual alarm, each solenoid valve
It is connect with signal wire, each SF6Combined aural and visual alarm is connected by signal wire, and above-mentioned signal wire connects above-mentioned alarm master control
Platform.
Further, above-mentioned liquid phase pilot supply unit includes pilot solution preparing tank and third connecting pipe, above-mentioned
One end of third connecting pipe connect the outlet end of above-mentioned pilot solution preparing tank, in above-mentioned third connecting pipe in the past
It is sequentially connected pilot liquid inventory valve, pilot solution booster pump, pilot solution pressure maintaining valve and pilot solution non-return valve backward, it is above-mentioned
The other end of third connecting pipe be connected to above-mentioned liquid CO2In delivery pipe, above-mentioned pilot solution non-return valve only allows
Liquid is by pilot solution allocation tank single flow direction liquid CO2Delivery pipe.
Preferably, it includes that pilot pulvis quantitatively adds pump and suction pump that above-mentioned liquid phase pilot, which prepares unit, above-mentioned
Pilot pulvis quantitatively adds pump and suction pump is connect with above-mentioned pilot solution preparing tank.
Preferably, above-mentioned warning agent supply unit includes the second connecting tube for warning agent storage tank and connecting with its outlet end
Road is disposed with warning agent flux valve, liquid phase SF in the second above-mentioned connecting pipe from front to back6Quantitative addition pump, it is above-mentioned
The other end of the second connecting pipe be connected on above-mentioned mixer.
Preferably, above-mentioned pilot pulvis be calcium chloride, sodium chloride, magnesium chloride or in which two or three of combination.
Another task of the invention is to provide one kind based on liquid phase pilot and the quick leakage warning liquid CO of energy2Manage defeated side
Method, successively the following steps are included:
A prepares unit by liquid phase pilot and inputs pilot solution into liquid phase pilot supply unit, it is ensured that liquid CO2Conveying
The rate of discharge valve of pipe is in off state, by the liquid phase pilot supply unit to liquid CO2It is molten that delivery pipe inputs pilot
Liquid, when positioned at liquid CO2When pressure gauge shows that pressure value reaches 2.2Mpa on well in delivery pipe, at this point, stopping conveying；
If b liquid CO2Delivery pipe is not revealed, then passes through liquid CO2Supply unit is to liquid CO2Delivery pipe inputs CO2, and
And warning agent supply unit is opened simultaneously to liquid CO2Input warning agent in delivery pipe；Warning agent is quantitatively added to liquid CO2
In delivery pipe, as liquid CO2Delivery pipe is once revealed, and warning agent meeting rapid vaporization reveals the SF near position6Sensor
It can incude and issue sound-light alarm, while information is transferred to alarm master control platform on well, alarm master control platform by signal wire
Liquid CO on closed-in well immediately2Flow valve stops liquid CO2Conveying；Open liquid CO2The rate of discharge valve of delivery pipe, it is real
Liquid CO now is perfused to goaf2；
C liquid CO2After perfusion, CO is closed2Supply unit, warning agent supply unit, reopen the conveying of liquid phase pilot
Unit is to liquid CO2Delivery pipe pressure injection pilot solution, pressure injection 30min；
D, after pressure injection pilot solution, then pressure injection water 30min rinses liquid CO2Delivery pipe.
Compared with prior art, present invention offers following advantageous effects:
(1) present invention makes full use of the incompressible characteristic of liquid, proposes to carry out liquid CO using liquid phase pilot2It is initial
Pilot liquid is first perfused in perfusion into pipeline, pilot liquid can be the solution such as high pressure chlorination calcium, magnesium chloride, sodium chloride, so
It is pressed into liquid CO again afterwards2, liquid CO when avoiding initial perfusion2Dry ice is formed simultaneously into gasifying rapidly in normal temperature and pressure pipeline
Block pipeline.In the solution such as calcium chloride, magnesium chloride, sodium chloride, pass through the quality of control solute calcium chloride, magnesium chloride, sodium chloride
Score, liquid CO used by the freezing point of solution being dropped to2Temperature hereinafter, encountering liquid CO when pilot solution2When not
It can freeze.The present invention is better able to smoothly realize liquid CO using the method for liquid phase pilot2Initial perfusion, and operate more
It is easy, it is easy to accomplish.
(2) CO is perfused in liquid2After, continue pressure injection pilot solution, can quickly and effectively remove remaining in pipeline
Liquid CO2, prevent remaining liquid CO2It forms dry ice blocking pipeline and influences the mechanical performance of pipeline.
(3) the pilot solution that the present invention applies can be the solution such as calcium chloride, magnesium chloride, sodium chloride, themselves is exactly
Good retardant, pressure injection pilot solution are realizing liquid CO2While safety and stability conveys, additionally it is possible to realize and be lost to goaf
Effective resistanceization of coal, further decrease lose coal from thermal hazard.
(4) there is distinguished and admirable, the CO after leakage in underworkings2It can be diluted and take away, leakage phenomenon is unintelligible, leads to work nearby
Making personnel cannot find in time.The present invention is proposed to liquid CO2Middle addition warns agent liquid SF6, after pipeline is revealed, let out
The liquid SF of exposing6It can gasify rapidly and be spread in underworkings, SF6Combined aural and visual alarm detects=after can sending sound immediately
Alert locations information is simultaneously transmitted to alarm master control platform by signal wire by light alarm, and alarm master control platform can be immediately on closed-in well
Liquid CO2Flow valve stops liquid CO2Conveying, and analyze confirmly detect SF6The SF positioned at most weather side6Sensing
Device, the then SF6Solenoid valve at sensor position and close to weather side at the position solenoid valve with close at the position
The solenoid valve of downwind side is all closed, and liquid CO remaining in pipeline is prevented and treated2Continue to outward leakage.
(5) present invention proposes to install liquid CO in vertical pipeline2Dedicated pressure reducer can be more than danger threshold in pressure
When, pressure is reduced to safe range again.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawing:
Fig. 1 is the liquid CO the present invention is based on liquid phase pilot and the quick leakage warning of energy2The defeated system knot of remote bursting tube
Structure schematic diagram；
In figure, 1- liquid CO2Storage tank, 2- warn agent storage tank, 3- pilot solution preparing tank, 4- liquid CO2Delivery pipe, 5- liquid
State CO2Flow valve, 6- mixer, 7- liquid CO2Dedicated booster pump, 8- liquid CO2Pressure maintaining valve, 9- liquid CO2Non-return valve, 10- well
Upper pressure gauge, 11- warn agent flux valve, 12- liquid phase SF6Quantitative addition pump, 13- pilot pulvis quantitatively add pump, and 14- draws water
Pump, 15- pilot liquid inventory valve, 16- pilot solution booster pump, 17- pilot solution pressure maintaining valve, 18- pilot solution non-return valve,
19- pressure reducer, 20- high pressure metal hose, 21- down-hole pressure table, 22- pipe outlet flow valve, 23- signal wire, 24-SF6
Combined aural and visual alarm, 25- solenoid valve, 26- alarm master control platform.
Specific embodiment
The invention proposes one kind based on liquid phase pilot and the quick leakage warning liquid CO of energy2Defeated system and method are managed, are
Keep advantages of the present invention, technical solution clearer, clear, elaborates combined with specific embodiments below to the present invention.
As shown in Figure 1, a kind of liquid CO based on liquid phase pilot and the quick leakage warning of energy of the invention2Remote safety
Manage defeated system, including liquid CO2Storage tank 1, warning agent storage tank 2, pilot solution preparing tank 3, liquid CO2Delivery pipe 4, signal wire 23,
SF6Combined aural and visual alarm 24, alarm master control platform 26, liquid CO2Storage tank 1, warning agent storage tank 2, pilot solution preparing tank 3 are arranged in
Near mine well head, liquid CO2Delivery pipe 4 and signal wire 23 are laid in roadway lane wall, liquid CO2The outlet end of storage tank 1 passes through liquid
State CO2Delivery pipe (the first connecting pipe) is sequentially connected liquid CO2Flow valve 5, mixer 6, liquid CO2Dedicated booster pump 7 and liquid
State CO2Pressure maintaining valve 8, liquid CO2The outlet end of pressure maintaining valve 8 is sequentially connected liquid CO2Non-return valve 9, liquid CO2The entrance of delivery pipe 4
End, liquid CO29 permission liquid CO of non-return valve2By liquid CO28 single flow direction liquid CO of pressure maintaining valve2Delivery pipe 4, liquid CO2It is defeated
End outlet of the pipe 4 in underground is sent to be embedded to 20 meters of goaf, liquid CO2Delivery pipe 4 pressure gauge 10, liquid on arrival end installation well
State CO210 meters of the position before being embedded to goaf of delivery pipe 4 is installed by down-hole pressure table 21 and pipe outlet flow valve 22 respectively；
In order to realize liquid CO2Leakage quickly warning, warning agent storage tank 2 successively with warning agent flux valve 11, liquid phase SF6It is fixed
Amount addition pump 12, mixer 6 connect, the liquid CO2Delivery pipe 4 fills solenoid valve 25 every 200 meter amperes, and in identical bits
Set installation SF6Combined aural and visual alarm 24, each solenoid valve 25 are connect with signal wire 23, each SF6Combined aural and visual alarm 24 passes through signal
Line 23 connects, and signal wire 23 connects alarm master control platform 26, and solenoid valve 25 is fire-proof and explosion-proof liquid CO2Special electromagnetic valve；
In order to realize liquid CO2The liquid phase pilot of transfer pipeline before conveying, pilot solution preparing tank 3 and pilot pulvis are quantitative
Addition pump 13 and suction pump 14 are connected to, and the outlet end of pilot solution preparing tank 3 is sequentially connected pilot liquid inventory valve 15, pilot
Solution booster pump 16, pilot solution pressure maintaining valve 17, pilot solution non-return valve 18, liquid CO2The arrival end of delivery pipe 4, pilot are molten
18 permission liquid of liquid non-return valve are by 3 single flow direction liquid CO of pilot solution allocation tank2Delivery pipe 4, wherein pilot pulvis can be with
But the pulvis such as calcium chloride, sodium chloride are not limited to, the present embodiment preferably calcium chloride is as pilot pulvis, pilot solution allocation
30% calcium chloride pilot solution；
Liquid CO in order to prevent2The excessively high formation of transfer pipeline internal pipe pressure is dangerous and prevents during transportation
Cause to reveal due to expanding with heat and contract with cold, liquid CO2Delivery pipe 4 is the seamless carbon steel pipes that diameter is 38mm, liquid CO2Delivery pipe 4
Vertical section fills pressure reducer 19, liquid CO every 300 meter amperes2Delivery pipe 4 fills high pressure metal hose 20 every 400 meter amperes, resistance to
The distance between steel pipe that 20 both ends of high pressure flexible metallic conduit are connected is 0.5 meter, and the length of high pressure metal hose 20 is 0.8
Rice；
Using the above-mentioned liquid CO based on liquid phase pilot and the quick leakage warning of energy2The defeated system of remote bursting tube, it is a kind of
Liquid CO based on liquid phase pilot and the quick leakage warning of energy2The defeated method of remote bursting tube, comprising the following steps:
A, from coal mine ground to underground goaf, longitudinal arrangement is laid with liquid CO on the wall surface of tunnel2Delivery pipe 4 and signal
Line 23；
B, liquid CO is connected according to the method described above2Storage tank 1, warning agent storage tank 2, pilot solution preparing tank 3, liquid CO2Conveying
Pipe 4, liquid CO2Flow valve 5, mixer 6, liquid CO2Dedicated booster pump 7, liquid CO2Pressure maintaining valve 8, liquid CO2Non-return valve 9, well
Upper pressure gauge 10, warning agent flux valve 11, liquid phase SF6Quantitative addition pump 12, pilot pulvis quantitatively add pump 13, suction pump 14,
Pilot liquid inventory valve 15, pilot solution booster pump 16, pilot solution pressure maintaining valve 17, pilot solution non-return valve 18, pressure reducer 19,
High pressure metal hose 20, down-hole pressure table 21, pipe outlet flow valve 22, signal wire 23, SF6Combined aural and visual alarm 24, electromagnetism
Valve 25, alarm master control platform 26；
C, it is water-soluble that pump 13, the preparation pilot solution of suction pump 14 are quantitatively added using pilot solution preparing tank 3, pilot pulvis
Liquid；
D, after confirmation pipe outlet flow valve 22 is all closed, pilot liquid inventory valve 15 is opened, starting pilot solution increases
Press pump 16, pilot solution pressure maintaining valve 17, to liquid CO24 pressure injection pilot solution aqueous solution of delivery pipe, the display of pressure gauge 10 pressure on well
When force value reaches 2.2Mpa, pilot liquid inventory valve 15, pilot solution booster pump 16, pilot solution pressure maintaining valve 17 are closed；
E, 30min is waited, if pressure gauge 10 or down-hole pressure table 21 show that numerical value is substantially reduced on well, shows pipe
Road is revealed, then the information for combining alarm master control platform 26 to show determines liquid CO2The leakage position of delivery pipe 4, and again
Connection；If pressure gauge 10 or down-hole pressure table 21 show that numerical value is not substantially reduced on well, liquid CO is opened2Flow valve
5, agent flux valve 11 is warned, liquid CO is started2Dedicated booster pump 7, liquid phase SF6Quantitative addition pump 12, mixer 6, liquid CO2Surely
Pressure valve 8, to liquid CO24 pressure injection liquid CO of delivery pipe2, liquid CO2The outlet pressure of dedicated booster pump 7 is set as 2.2Mpa,
In this example, liquid phase SF6Quantitative addition pump 12 quantitatively adds SF6Make SF in mixer 66Content is 6mg/m3, then slowly open
Pipe outlet flow valve 22 is realized to goaf and liquid CO is perfused2；
F, liquid CO2After perfusion, liquid CO is closed2Flow valve 5, liquid CO2Dedicated booster pump 7, liquid CO2Pressure stabilizing
Valve 8, warning agent flux valve 11, liquid phase SF6Quantitative addition pump 12, mixer 6, reopen pilot liquid inventory valve 15, pilot
Solution booster pump 16, pilot solution pressure maintaining valve 17 are to liquid CO24 pressure injection pilot solution aqueous solution of delivery pipe, pressure injection 30min；
G, after pressure injection pilot solution aqueous solution, then pressure injection water 30min rinses liquid CO2Delivery pipe 4.
The present invention contains liquid warning agent storage tank, for storing warning agent SF6, while liquid CO2Conveyance conduit along journey every
200 meters of setting SF6Sensor and solenoid valve, warning agent are quantitatively added to liquid CO2In delivery pipe, conveyance conduit once occurs
Leakage warns agent meeting rapid vaporization, the SF near pipeline leakage position6Sensor can incude and issue sound-light alarm, simultaneously will
Information is transferred to alarm master control platform on well by signal wire, the master control platform liquid CO on closed-in well immediately2Flow valve, stop solution
State CO2Conveying, and analyze confirmly detect SF6The SF positioned at most weather side6Sensor, the then SF6Sensor position
Solenoid valve near place is closed, and liquid CO remaining in pipeline is prevented2Continue to outward leakage；Containing pilot solution preparing tank, use
In preparing pilot solution, in liquid CO2Before conveying, first into pipeline, high pressure injects pilot liquid, prevents initial delivery liquid CO2
When liquid CO2Into low pressure pipeline rapid vaporization and dry ice blocking pipeline is formed, furthermore pilot solution can be used for liquid CO2Stop
The cleaning of pipeline after conveying.The present invention is based on liquid phase pilot and the liquid CO of the quick leakage warning of energy2The remote defeated system of bursting tube
System and method improve liquid CO2Stability and safety in transmission process have extensive practical in the art
Property.
It uses for reference the prior art and can be realized in the part that do not addressed in the present invention.
It should be noted that any equivalent way that those skilled in the art are made under the introduction of this specification, or
Obvious variant should all be within the scope of the present invention.
Claims (10)
1. one kind is based on liquid phase pilot and the quick leakage warning liquid CO of energy2Manage defeated system comprising liquid CO2Supply unit and
The liquid CO set from coal mine ground to underground goaf on tunnel wall surface upper berth2Delivery pipe and signal wire, it is characterised in that: also wrap
Include liquid phase pilot supply unit, liquid phase pilot prepares unit, warns agent supply unit and alarm master control platform；
The liquid phase pilot prepares unit and is used to provide pilot liquid into liquid phase pilot supply unit；
The liquid CO2Supply unit is used for the liquid CO2CO is conveyed in delivery pipe2；
The liquid phase pilot supply unit is used in the liquid CO2Supply unit conveys CO2Forward direction described in liquid
CO2Pilot liquid is inputted in delivery pipe, and in the liquid CO2Supply unit conveys CO2Later again to the liquid
State CO2Pilot liquid is inputted in delivery pipe；
The warning agent supply unit and the liquid CO2Supply unit is together to the liquid CO2It is conveyed in delivery pipe
CO2With warning agent, the warning agent is used to transmit signal to signal wire, and is controlled whether by the alarm master control platform
Input liquid CO2。
2. one kind according to claim 1 is based on liquid phase pilot and the quick leakage warning liquid CO of energy2Defeated system is managed, it is special
Sign is: the liquid CO2Supply unit includes liquid CO2Storage tank and it is connected to liquid CO2First connection at outlet end
Pipeline, the other end connection of first connecting pipe liquid CO2Delivery pipe, in first connecting pipe from
Liquid CO is disposed with after going to2Flow valve, mixer, liquid CO2Dedicated booster pump, liquid CO2Pressure maintaining valve, described
Liquid CO2The outlet end of pressure maintaining valve is connected with liquid CO2Non-return valve, the liquid CO2Non-return valve only allows liquid CO2By liquid
State CO2Pressure maintaining valve single flow direction liquid CO2Delivery pipe.
3. one kind according to claim 2 is based on liquid phase pilot and the quick leakage warning liquid CO of energy2Defeated system is managed, it is special
Sign is: the liquid CO2End outlet of the delivery pipe in underground is embedded to goaf 20-60 meters, the liquid CO2Conveying
Pipe is equipped with pressure gauge on well in arrival end；The liquid CO2Distinguish delivery pipe 2-20 meters of position before being embedded to goaf
Down-hole pressure table and pipe outlet flow valve are installed.
4. one kind according to claim 3 is based on liquid phase pilot and the quick leakage warning liquid CO of energy2Defeated system is managed, it is special
Sign is: the liquid CO2Delivery pipe is the seamless carbon steel pipes that diameter is 20-50mm, the liquid CO2Delivery pipe exists
One pressure reducer, the liquid CO are housed every 300 meter amperes in vertical section between coal mine ground and goaf2It is defeated
Send pipe that one high pressure metal hose is housed every 400-500 meter ampere on the horizontal pipe section being located near goaf, it is described
The distance between steel pipe that high pressure metal hose both ends are connected is 0.5 meter, and the length of the high pressure metal hose is
0.8 meter.
5. one kind according to claim 4 is based on liquid phase pilot and the quick leakage warning liquid CO of energy2Defeated system is managed, it is special
Sign is: the liquid CO2Several solenoid valves are installed in delivery pipe, the distance between adjacent solenoid valve is 200 meters,
And SF is installed on the signal wire of the relative position of each solenoid valve6Combined aural and visual alarm, each solenoid valve is and signal wire
Connection, each SF6Combined aural and visual alarm is connected by signal wire, and the signal wire connects the alarm master control platform.
6. described in any item one kind are based on liquid phase pilot and the quick leakage warning liquid CO of energy according to claim 1~52It manages defeated
System, it is characterised in that: the liquid phase pilot supply unit includes pilot solution preparing tank and third connecting pipe, described
One end of third connecting pipe connects the outlet end of the pilot solution preparing tank, from going in the third connecting pipe
After be sequentially connected pilot liquid inventory valve, pilot solution booster pump, pilot solution pressure maintaining valve and pilot solution non-return valve, it is described
The other end of third connecting pipe is connected to the liquid CO2In delivery pipe, the pilot solution non-return valve only allows liquid
Body is by pilot solution allocation tank single flow direction liquid CO2Delivery pipe.
7. one kind according to claim 6 is based on liquid phase pilot and the quick leakage warning liquid CO of energy2Defeated system is managed, it is special
Sign is: it includes that pilot pulvis quantitatively adds pump and suction pump, the pilot pulvis that the liquid phase pilot, which prepares unit,
Quantitative addition pump and suction pump are connect with the pilot solution preparing tank.
8. one kind according to claim 7 is based on liquid phase pilot and the quick leakage warning liquid CO of energy2Defeated system is managed, it is special
Sign is: the warning agent supply unit includes the second connecting pipe for warning agent storage tank and connecting with its outlet end, described
The second connecting pipe on be disposed with from front to back warning agent flux valve, liquid phase SF6Quantitative addition pump, described second connects
The other end in adapter tube road is connected on the mixer.
9. one kind according to claim 8 is based on liquid phase pilot and the quick leakage warning liquid CO of energy2Defeated system is managed, it is special
Sign is: the pilot pulvis be calcium chloride, sodium chloride, magnesium chloride or in which two or three of combination.
10. one kind is based on liquid phase pilot and the quick leakage warning liquid CO of energy2Pipe transmission method, which is characterized in that it uses right to want
It asks described in 1~9 any one based on liquid phase pilot and the quick leakage warning liquid CO of energy2Defeated system is managed, the method is successively wrapped
Include following steps:
A prepares unit by liquid phase pilot and inputs pilot solution into liquid phase pilot supply unit, it is ensured that liquid CO2Delivery pipe
Rate of discharge valve is in off state, by the liquid phase pilot supply unit to liquid CO2Delivery pipe inputs pilot solution, when
Positioned at liquid CO2When pressure gauge shows that pressure value reaches 2.2Mpa on well in delivery pipe, at this point, stopping conveying；
If b liquid CO2Delivery pipe is not revealed, then passes through liquid CO2Supply unit is to liquid CO2Delivery pipe inputs CO2, and at the same time
Warning agent supply unit is opened to liquid CO2Input warning agent in delivery pipe；Warning agent is quantitatively added to liquid CO2Delivery pipe
In, as liquid CO2Delivery pipe is once revealed, and warning agent meeting rapid vaporization reveals the SF near position6Sensor can incude
And sound-light alarm being issued, while information is transferred to alarm master control platform on well by signal wire, alarm master control platform closes immediately
Close the liquid CO on well2Flow valve stops liquid CO2Conveying；Open liquid CO2The rate of discharge valve of delivery pipe is realized to adopting
Liquid CO is perfused in dead zone2；
C liquid CO2After perfusion, CO is closed2Supply unit, warning agent supply unit, reopen liquid phase pilot supply unit
To liquid CO2Delivery pipe pressure injection pilot solution, pressure injection 30min；
D, after pressure injection pilot solution, then pressure injection water 30min rinses liquid CO2Delivery pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910219585.9A CN110207021A (en) | 2019-03-22 | 2019-03-22 | Based on liquid phase pilot and the quick leakage warning liquid CO of energy2Manage defeated system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910219585.9A CN110207021A (en) | 2019-03-22 | 2019-03-22 | Based on liquid phase pilot and the quick leakage warning liquid CO of energy2Manage defeated system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110207021A true CN110207021A (en) | 2019-09-06 |
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ID=67785283
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910219585.9A Pending CN110207021A (en) | 2019-03-22 | 2019-03-22 | Based on liquid phase pilot and the quick leakage warning liquid CO of energy2Manage defeated system and method |
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| CN (1) | CN110207021A (en) |
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