CN209944017U - Liquid CO based on liquid phase pressure guide and capable of rapidly leaking and warning2Pipe conveying system - Google Patents
Liquid CO based on liquid phase pressure guide and capable of rapidly leaking and warning2Pipe conveying system Download PDFInfo
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- CN209944017U CN209944017U CN201920366350.8U CN201920366350U CN209944017U CN 209944017 U CN209944017 U CN 209944017U CN 201920366350 U CN201920366350 U CN 201920366350U CN 209944017 U CN209944017 U CN 209944017U
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Abstract
The utility model discloses a lead pressure and can reveal warning liquid CO fast based on liquid phase2A pipe conveying system, which belongs to greenhouse gas CO2Underground space sealing and coal mine safety technical field. It mainly comprises liquid CO2Conveying unit, liquid-phase pressure-guiding preparation unit, warning agent conveying unit and warning agentA police master console; the liquid-phase pressure guiding and preparing unit is used for providing pressure guiding liquid to the liquid-phase pressure guiding and conveying unit; liquid CO2The transfer unit being for transferring liquid CO2Transport of CO in a transport pipe2(ii) a The liquid-phase pressure-guiding conveying unit is used for conveying liquid CO2Transport unit for CO2Forward liquid CO2The delivery pipe is used for introducing pressure-guiding liquid and for introducing CO in liquid state2Transport unit for CO2Then again to liquid CO2Pressure-guiding liquid is input into the conveying pipe. The utility model provides high liquid CO2Stability and security in the transportation process have extensive practicality in this technical field.
Description
Technical Field
The utility model relates to a greenhouse gas CO2Underground space sealing and coal mine safety technical field, in particular to a liquid CO rapid leakage warning device2A pipe conveying system.
Background
With CO2The continuous increase of the emission amount of greenhouse gases as a main body brings serious harm to the living environment of human beings, and is a problem which needs to be solved together urgently in all countries of the world. For reducing CO in global atmosphere2Content of (A), CO2Has received increasing attention as to the capture and disposal of CO2The capture and sequestration (CCS) technology is expected to become a large-scale CO reduction technology2The most cost effective technique for venting. The goaf formed after coal mining is CO2Provides a large space for underground containment. Research on safe and stable CO transportation from coal mine ground to underground goaf2The system and the method realize the efficient CO sequestration in the goaf2The premise of (1).
Spontaneous coal combustion is one of the major natural disasters in coal mines. The spontaneous combustion of coal is mainly caused by a series of complex physicochemical processes generated by the coal and oxygen in the air, and the heat production rate of the processes is greater than the heat dissipation rate to the surrounding environment of the coal, so that the slow accumulation of heat is generated, and the coal reaches the ignition point and is combusted. Pouring liquid CO into fire zone2The oxygen concentration in the fire area can be rapidly reduced, and the physicochemical process of the coal and the oxygen is inhibited, so that the prevention and the treatment of the coal spontaneous combustion disaster are realized. Meanwhile, after spontaneous combustion occurs to the coal pile in the fire zone of the goaf of the coal mine, because the heat conductivity coefficients of coal carbon and surrounding rocks are small, and the gaps of the coal pile contain gas capable of preserving heat of coal rock bodies, the cooling rate of the high-temperature coal pile is very slow even in an almost oxygen-free inert gas environment, and once oxygen is supplied again, re-combustion can occur rapidly.
In order to prevent potential safety hazards such as spontaneous combustion of coal, related researchers have achieved certain research results, and relevant research reports in the prior art mainly include:
CN 108979705A discloses a coal mine underground coupling inert gas fire prevention and extinguishing technology, the method steps adopted by the technology are as follows: calculating the coupling inert gas injection flow; burying a pipe in the goaf, connecting a low-temperature stainless steel hose of the liquid carbon dioxide tank car with a carbon dioxide vaporizer, conveying nitrogen to an inert gas coupler, coupling gaseous carbon dioxide and nitrogen in the inert gas coupler, and continuously conveying the coupled gaseous carbon dioxide and nitrogen to the goaf on a working surface to prevent and extinguish fire; and in the goaf gas detection, when the specific gravity of the coupled inert gas is increased to be higher than that of air, the inert gas flows slowly in the goaf and is not easy to be taken away by air leakage of the goaf, the proper amount of the inert gas is injected under the control of a carbon dioxide sensor, the health of workers is not harmed, and when the oxygen concentration of the goaf is reduced to be below 7%, the natural ignition is not generated. Pressure injection of liquid CO into goaf2After then, CO2The phase change absorbs a large amount of heat, and can promote the rapid cooling of the high-temperature coal pile. Therefore, the liquid CO is injected into the goaf by pressure to prevent and control the coal spontaneous combustion disaster2Is a good method.
The reduction of the content of the greenhouse gas in the atmosphere and the treatment of the spontaneous combustion disaster of the mine coal are both needed to be held from the ground to the underground of the mineContinuous transport of liquid CO2. However, liquid CO2The long distance transportation of (2) may have the following problems: initial delivery of liquid CO2Time, liquid CO2The carbon dioxide enters a pipeline at normal temperature and normal pressure, is quickly vaporized to form dry ice, and is easy to block the pipeline; liquid CO2The pipeline is easy to corrode and leak, and once leakage occurs in an underground roadway, accidents such as suffocation and the like easily occur.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lead pressure and can reveal warning liquid CO fast based on liquid phase2Piping system for increasing liquid CO2Safety in the filling procedure, achieving mine fire prevention and extinguishing and safe continuous delivery of liquid CO2。
In order to achieve the above purpose, the utility model adopts the following technical scheme:
liquid CO based on liquid phase pressure guide and capable of rapidly leaking and warning2A pipe conveying system comprising liquid CO2Conveying unit and liquid CO paved on wall surface of roadway from ground of coal mine to underground goaf2The alarm comprises a conveying pipe, a signal wire, a liquid-phase pressure guide conveying unit, a liquid-phase pressure guide preparation unit, an alarm agent conveying unit and an alarm master control console;
the liquid phase pressure guiding and preparing unit is used for providing pressure guiding liquid to the liquid phase pressure guiding and conveying unit;
the liquid CO2A delivery unit for delivering CO to the liquid phase2Transport of CO in a transport pipe2；
The liquid-phase pressure-guiding conveying unit is used for conveying the liquid CO2Transport unit for CO2To said liquid CO2The delivery pipe is used for inputting pressure-guiding liquid and is used for introducing the liquid CO2Transport unit for CO2Then to the liquid CO again2Pressure-guiding liquid is input into the conveying pipe;
the warning agent delivery unit and the liquid CO2The conveying units together feed the liquid CO2Transport of CO in a transport pipe2And a warning agent for providing a signalThe line transmits signals and controls whether to input liquid CO or not through the alarm master console2。
As a preferred embodiment of the present invention, the liquid CO mentioned above2The transport unit comprises liquid CO2Storage tank and connection to liquid CO2A first connecting pipeline at the outlet end of the storage tank, wherein the other end of the first connecting pipeline is connected with the liquid CO2A delivery pipe, wherein liquid CO is sequentially arranged on the first connecting pipeline from front to back2Flow valve, mixer, liquid CO2Special booster pump and liquid CO2Pressure maintaining valve for maintaining the pressure of the liquid CO2The outlet end of the pressure stabilizing valve is connected with liquid CO2Check valve of the above-mentioned liquid CO2Check valves allowing only liquid CO2From liquid CO2Pressure stabilizing valve one-way flow direction liquid CO2A delivery pipe.
As another preferred embodiment of the present invention, the liquid CO mentioned above2The outlet of the conveying pipe at the tail end of the underground is buried in a goaf for 20-60 m, and the liquid CO is2The inlet end of the conveying pipe is provided with an aboveground pressure gauge; the above-mentioned liquid CO2An underground pressure gauge and a pipeline outlet flow valve are respectively installed on the conveying pipe 2-20 meters before the conveying pipe is buried in the goaf.
Further, the liquid CO mentioned above2The delivery pipe is a seamless carbon steel pipe with a diameter of 20-50mm, and the liquid CO is2The conveying pipe is provided with a pressure reducer every 300 m on a vertical pipe section between the ground of a coal mine and a goaf, and the liquid CO is2The conveying pipe is provided with a high-pressure resistant metal hose on a horizontal pipe section near the goaf at intervals of 400-500 m, the distance between steel pipes connected with two ends of the high-pressure resistant metal hose is 0.5 m, and the length of the high-pressure resistant metal hose is 0.8 m.
Further, the liquid CO mentioned above2A plurality of electromagnetic valves are arranged on the conveying pipe, the distance between every two adjacent electromagnetic valves is 200 m, and SF is arranged on a signal wire at the relative position of each electromagnetic valve6Audible and visual alarm, each electromagnetic valve is connected with a signal wire, and each SF6The audible and visual alarm is connected through a signal wire, and the signal wire is connected with the alarm main control console.
Further, the liquid-phase pressure-guiding conveying unit comprises a pressure-guiding solution preparation tank and a third connecting pipeline, one end of the third connecting pipeline is connected with the outlet end of the pressure-guiding solution preparation tank, the third connecting pipeline is sequentially connected with a pressure-guiding solution flow valve, a pressure-guiding solution booster pump, a pressure-guiding solution pressure-stabilizing valve and a pressure-guiding solution check valve from front to back, and the other end of the third connecting pipeline is connected to the liquid CO2In the delivery pipe, the pressure guide solution check valve only allows the liquid to flow from the pressure guide solution configuration tank to the liquid CO in one way2A delivery pipe.
Preferably, the liquid-phase pressure-conducting preparation unit comprises a pressure-conducting powder quantitative addition pump and a water pump, and both the pressure-conducting powder quantitative addition pump and the water pump are connected with the pressure-conducting solution preparation tank.
Preferably, the warning agent delivery unit comprises a warning agent storage tank and a second connecting pipeline connected with an outlet end of the warning agent storage tank, and the second connecting pipeline is sequentially provided with a warning agent flow valve and a liquid-phase SF from front to back6And a fixed-amount adding pump, wherein the other end of the second connecting pipeline is connected to the mixer.
Compared with the prior art, the utility model discloses following beneficial technological effect has been brought:
(1) the utility model discloses the incompressible characteristic of make full use of liquid proposes to adopt the liquid phase to lead the pressure and carry out liquid CO2The initial filling is to fill pressure-guiding liquid into the pipeline, wherein the pressure-guiding liquid can be high-pressure calcium chloride, magnesium chloride, sodium chloride and other solutions, and then to press in liquid CO2Avoiding liquid CO during initial perfusion2The mixture is quickly gasified in a normal-temperature normal-pressure pipeline to form dry ice and block the pipeline. In solutions of calcium chloride, magnesium chloride, sodium chloride and the like, the freezing point of the solution can be reduced to the adopted liquid CO by controlling the mass fractions of solutes of calcium chloride, magnesium chloride and sodium chloride2When the pressure-guiding solution meets liquid CO2Does not freeze when used. The utility model discloses adoptThe liquid CO can be more smoothly realized by a liquid-phase pressure guiding method2The initial perfusion is more convenient to operate and easy to realize.
(2) CO infusion in liquid state2After the completion, the pressure solution is continuously injected, so that the residual liquid CO in the pipeline can be quickly and effectively removed2Prevention of residual liquid CO2Dry ice forms to plug the pipe and affects the mechanical properties of the pipe.
(3) The utility model discloses the pressure solution of using can be solutions such as calcium chloride, magnesium chloride, sodium chloride, and they are fine stopping agent itself, and the pressure solution is leading in realizing liquid CO to the pressure notes2The conveying is safe and stable, meanwhile, the effective inhibition of the left coal in the goaf can be realized, and the self-heating danger of the left coal is further reduced.
(4) The underground tunnel has wind flow and leaked CO2Can be diluted and taken away, the leakage phenomenon is not clear, and nearby workers cannot find the leakage phenomenon in time. The utility model provides a to liquid CO2In which warning agent liquid SF is added6When the pipeline leaks, the leaked liquid SF6Can be rapidly gasified and diffused in a downhole tunnel, SF6The audible and visual alarm immediately sends audible and visual alarm after detecting the alarm and transmits alarm position information to the alarm master control console through a signal wire, and the alarm master control console immediately closes the liquid CO on the well2Flow valve, stop liquid CO2And analysis determines detection of SF6SF of the upwind side6Sensor, then the SF6The electromagnetic valve at the position of the sensor, the electromagnetic valve close to the upwind side of the position and the electromagnetic valve close to the downwind side of the position are all closed, and residual liquid CO in the pipeline is prevented2And continues to leak outwards.
(5) The utility model provides an installation liquid CO in vertical pipeline2A dedicated pressure reducer capable of reducing the pressure back to a safe range when the pressure exceeds a dangerous threshold.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
FIG. 1 shows that the utility model discloses liquid CO based on liquid phase pressure is led and warning can be revealed fast2The structure schematic diagram of the remote safety pipe transmission system;
in the figure, 1-liquid CO2A storage tank, a 2-warning agent storage tank, a 3-pressure guide solution preparation tank, and 4-liquid CO2Transport pipe, 5-liquid CO2Flow valve, 6-Mixer, 7-liquid CO2Special booster pump, 8-liquid CO2Pressure maintaining valve, 9-liquid CO2Check valve, 10-pressure gauge on well, 11-warning agent flow valve, 12-liquid phase SF6The quantitative adding pump, 13-pressure-guiding powder quantitative adding pump, 14-water suction pump, 15-pressure-guiding solution flow valve, 16-pressure-guiding solution booster pump, 17-pressure-guiding solution pressure stabilizing valve, 18-pressure-guiding solution check valve, 19-pressure reducer, 20-high pressure-resistant metal hose, 21-underground pressure gauge, 22-pipeline outlet flow valve, 23-signal line, 24-SF6The alarm comprises an audible and visual alarm, 25-an electromagnetic valve and 26-an alarm master console.
Detailed Description
The utility model provides a lead pressure and can reveal warning liquid CO fast based on liquid phase2The pipe conveying system, in order to make the advantages and technical scheme of the utility model clearer and more clear, is right below combining with the specific embodiment the utility model discloses do the detailed description.
As shown in fig. 1, the utility model discloses a liquid CO based on liquid phase pressure guide just can reveal warning fast2Remote safety pipe system comprising liquid CO2Storage tank 1, warning agent storage tank 2, pressure guide solution preparation tank 3 and liquid CO2Transport pipe 4, signal line 23, SF6Audible and visual alarm 24, alarm master control console 26, liquid CO2The storage tank 1, the warning agent storage tank 2 and the pressure guiding solution preparation tank 3 are arranged near a mine wellhead, and liquid CO2The conveying pipe 4 and the signal wire 23 are laid on the wall of the roadway and liquid CO2The outlet end of the storage tank 1 is passed through liquid CO2The conveying pipe (the first connecting pipeline) is connected with the liquid CO in sequence2Flow valve 5, mixer 6, liquid CO2 Special booster pump 7 and liquid CO2 Pressure maintaining valve 8, liquid CO2The outlet end of the pressure stabilizing valve 8 is sequentially connected with liquid CO2Check valve 9, liquid CO2Inlet end of the transfer pipe 4, liquid CO2Check valve 9 allows liquid CO only2From liquid CO2 Pressure stabilizing valve 8 for one-way flow of liquid CO2Transport pipe 4, liquid CO2The outlet of the conveying pipe 4 at the tail end of the underground is buried into a goaf for 20 meters, and liquid CO is introduced2The inlet end of the conveying pipe 4 is provided with an aboveground pressure gauge 10 and liquid CO2The conveying pipe 4 is respectively provided with an underground pressure gauge 21 and a pipeline outlet flow valve 22 at the position 10 meters before being buried in the goaf;
to realize liquid CO2The leakage rapid warning is realized by sequentially connecting the warning agent storage tank 2 with the warning agent flow valve 11 and the liquid-phase SF6A quantitative adding pump 12 connected with the mixer 6, and the liquid CO2The delivery pipe 4 is installed with solenoid valves 25 every 200 m and SF is installed at the same position6An audible and visual alarm 24, each solenoid valve 25 connected to the signal line 23, each SF6The audible and visual alarm 24 is connected through a signal wire 23, the signal wire 23 is connected with an alarm main control console 26, and the electromagnetic valve 25 is fireproof and explosion-proof liquid CO2A special electromagnetic valve;
to realize liquid CO2The liquid phase of the conveying pipeline is guided and pressed before conveying, the pressure guiding solution preparation tank 3 is communicated with a pressure guiding powder quantitative adding pump 13 and a water suction pump 14, and the outlet end of the pressure guiding solution preparation tank 3 is sequentially connected with a pressure guiding solution flow valve 15, a pressure guiding solution booster pump 16, a pressure guiding solution pressure stabilizing valve 17, a pressure guiding solution check valve 18, liquid CO2At the inlet end of the delivery pipe 4, a pressure-guiding solution check valve 18 only allows one-way flow of liquid from the pressure-guiding solution preparation tank 3 to the liquid CO2A delivery pipe 4, wherein the pressure-guiding powder can be but is not limited to calcium chloride, sodium chloride, magnesium chloride and the like, calcium chloride is preferred as the pressure-guiding powder in the embodiment, and the pressure-guiding solution is configured as 30% calcium chloride pressure-guiding solution;
to prevent liquid CO2The danger is formed by overhigh internal pressure of the pipeline of the conveying pipeline, and the leakage and the liquid CO caused by expansion with heat and contraction with cold in the conveying process are prevented2The delivery pipe 4 is a seamless carbon steel pipe with a diameter of 38mm, liquid CO2The vertical pipe section of the conveying pipe 4 is provided with a pressure reducer 19 every 300 m, liquid CO2The high-pressure resistant metal is arranged every 400 meters on the conveying pipe 4The distance between steel pipes connected with the two ends of the hose 20 is 0.5 m, and the length of the hose 20 is 0.8 m;
adopt above-mentioned liquid CO based on liquid phase pressure conduction and can reveal warning fast2Remote safety pipe transmission system, a liquid CO based on liquid phase pressure guide and capable of rapidly revealing warning2The remote safe pipe conveying method comprises the following steps:
a. longitudinally arranging and laying liquid CO on the wall surface of the roadway from the ground of the coal mine to the underground goaf2The transmission pipe 4 and the signal line 23;
b. linking liquid CO according to the above method2Storage tank 1, warning agent storage tank 2, pressure guide solution preparation tank 3 and liquid CO2Transport pipe 4, liquid CO2Flow valve 5, mixer 6, liquid CO2 Special booster pump 7 and liquid CO2 Pressure stabilizing valve 8 and liquid CO2Check valve 9, aboveground pressure gauge 10, warning agent flow valve 11 and liquid phase SF6A quantitative adding pump 12, a pressure guide powder quantitative adding pump 13, a water suction pump 14, a pressure guide solution flow valve 15, a pressure guide solution booster pump 16, a pressure guide solution pressure stabilizing valve 17, a pressure guide solution check valve 18, a pressure reducer 19, a high-pressure resistant metal hose 20, a downhole pressure gauge 21, a pipeline outlet flow valve 22, a signal line 23, and an SF (sulfur hexafluoride) signal line6An audible and visual alarm 24, an electromagnetic valve 25 and an alarm master control console 26;
c. preparing a pressure-guiding solution aqueous solution by using a pressure-guiding solution preparation tank 3, a pressure-guiding powder quantitative addition pump 13 and a water suction pump 14;
d. after confirming that the pipeline outlet flow valve 22 is completely closed, the pressure guide solution flow valve 15 is opened, the pressure guide solution booster pump 16 and the pressure guide solution pressure stabilizing valve 17 are started, and liquid CO is fed2The conveying pipe 4 is used for injecting the pressure-guiding solution water solution, when the pressure value displayed by an aboveground pressure gauge 10 reaches 2.2Mpa, the pressure-guiding solution flow valve 15, the pressure-guiding solution booster pump 16 and the pressure-guiding solution pressure stabilizing valve 17 are closed;
e. waiting for 30min, if the numerical value displayed by the aboveground pressure gauge 10 or the underground pressure gauge 21 is obviously reduced, indicating that the pipeline leaks, determining the liquid CO by combining the information displayed by the alarm master console 262Leakage of delivery pipe 4Position, and reconnect; if the pressure gauge 10 or 21 shows no significant decrease in value, then the liquid CO is turned on2 Flow valve 5, warning agent flow valve 11, start liquid CO2 Special booster pump 7 and liquid-phase SF6 Dosing pump 12, mixer 6, liquid CO2 Pressure maintaining valve 8 for supplying liquid CO2Liquid CO is injected into the delivery pipe 4 by pressure2Liquid CO2The outlet pressure of the dedicated booster pump 7 is set at 2.2Mpa, in this example, liquid phase SF6 Quantitative addition pump 12 quantitatively adds SF6Mixing of SF in mixer 66The content is 6mg/m3Then slowly opening the flow valve 22 at the outlet of the pipeline to realize the filling of liquid CO into the goaf2；
f. Liquid CO2After the perfusion is finished, the liquid CO is closed2 Flow valve 5, liquid CO2 Special booster pump 7 and liquid CO2 Pressure stabilizing valve 8, warning agent flow valve 11 and liquid phase SF6The quantitative adding pump 12 and the mixer 6 are opened again, the pressure guide solution flow valve 15, the pressure guide solution booster pump 16 and the pressure guide solution pressure stabilizing valve 17 are opened again to supply liquid CO2The conveying pipe 4 is used for injecting the pressure-guiding solution water solution for 30 min;
g. after the pressure injection of the pressure guide solution aqueous solution is finished, the water is injected again for 30min to flush the liquid CO2A delivery pipe 4.
The utility model discloses contain liquid warning agent storage tank for store warning agent SF6Simultaneous liquid CO2The conveying pipeline is provided with SF every 200 meters along the way6Sensor and electromagnetic valve, warning agent is quantitatively added into liquid CO2In the delivery pipe, once the delivery pipeline leaks, the warning agent can be quickly vaporized, and SF near the pipeline leakage position6The sensor can sense and send out acousto-optic alarm, and simultaneously, the information is transmitted to a master console of the alarm device on the well through a signal wire, and the master console immediately closes the liquid CO on the well2Flow valve, stop liquid CO2And analysis determines detection of SF6SF of the upwind side6Sensor, then the SF6The solenoid valve near the sensor position closes, preventing residual liquid CO in the pipeline2Continuously leaking outwards; comprisesHas a pressure-guiding solution preparation tank for preparing pressure-guiding solution in liquid CO2Before transportation, high-pressure injection of pressure-guiding liquid into pipeline to prevent initial transportation of liquid CO2Liquid CO2Entering a low-pressure pipeline for rapid vaporization and forming dry ice to block the pipeline, and the pressure guide solution can be used for liquid CO2And stopping cleaning the pipeline after conveying. The utility model discloses liquid CO based on liquid phase is led and is pressed and can reveal warning fast2Remote safety pipeline system and method for improving liquid CO2Stability and security in the transportation process have extensive practicality in this technical field.
The utility model discloses the part that does not describe in can realize by reference prior art.
It is intended that any equivalents, or obvious variations, which may be made by those skilled in the art in light of the teachings herein, be considered within the scope of the present invention.
Claims (8)
1. Liquid CO based on liquid phase pressure guide and capable of rapidly leaking and warning2A pipe conveying system comprising liquid CO2Conveying unit and liquid CO paved on wall surface of roadway from ground of coal mine to underground goaf2Conveyer pipe and signal line, its characterized in that: the alarm device also comprises a liquid-phase pressure-guiding conveying unit, a liquid-phase pressure-guiding preparation unit, a warning agent conveying unit and an alarm master control console;
the liquid phase pressure guiding and preparing unit is used for providing pressure guiding liquid to the liquid phase pressure guiding and conveying unit;
the liquid CO2A delivery unit for delivering CO to the liquid phase2Transport of CO in a transport pipe2；
The liquid-phase pressure-guiding conveying unit is used for conveying the liquid CO2Transport unit for CO2To said liquid CO2The delivery pipe is used for inputting pressure-guiding liquid and is used for introducing the liquid CO2Transport unit for CO2Then to the liquid CO again2Pressure-guiding liquid is input into the conveying pipe;
the warning agent delivery unit and the liquid CO2The conveying units together feed the liquid CO2Transport of CO in a transport pipe2And the warning agent is used for transmitting signals to the signal wire and controlling whether to input liquid CO or not through the alarm main console2。
2. The liquid CO alarm device based on liquid-phase pressure guiding and capable of rapidly leaking and warning liquid CO according to claim 12A tubular delivery system, characterized by: the liquid CO2The transport unit comprises liquid CO2Storage tank and connection to liquid CO2A first connecting pipeline at the outlet end of the storage tank, wherein the other end of the first connecting pipeline is connected with the liquid CO2A delivery pipe, wherein the first connecting pipeline is sequentially provided with liquid CO from front to back2Flow valve, mixer, liquid CO2Special booster pump and liquid CO2Pressure maintaining valve for maintaining CO in liquid state2The outlet end of the pressure stabilizing valve is connected with liquid CO2Check valve, said liquid CO2Check valves allowing only liquid CO2From liquid CO2Pressure stabilizing valve one-way flow direction liquid CO2A delivery pipe.
3. The liquid CO alarm device based on liquid-phase pressure guiding and capable of rapidly leaking and warning liquid CO according to claim 22A tubular delivery system, characterized by: the liquid CO2The outlet of the conveying pipe at the tail end of the underground is buried in a goaf for 20-60 m, and the liquid CO is2The inlet end of the conveying pipe is provided with an aboveground pressure gauge; the liquid CO2An underground pressure gauge and a pipeline outlet flow valve are respectively installed on the conveying pipe 2-20 meters before the conveying pipe is buried in the goaf.
4. The liquid CO alarm device based on liquid-phase pressure guiding and capable of rapidly leaking and warning liquid CO according to claim 32A tubular delivery system, characterized by: the liquid CO2The delivery pipe is a seamless carbon steel pipe with the diameter of 20-50mm, and the liquid CO is2The conveying pipe is provided with a pressure reducer every 300 m on a vertical pipe section between the ground of a coal mine and a goaf, and the liquid state isCO2The conveying pipe is provided with a high-pressure resistant metal hose on a horizontal pipe section near the goaf at intervals of 400-500 m, the distance between steel pipes connected with two ends of the high-pressure resistant metal hose is 0.5 m, and the length of the high-pressure resistant metal hose is 0.8 m.
5. The liquid CO alarm device based on liquid-phase pressure guiding and capable of rapidly alarming leakage according to claim 42A tubular delivery system, characterized by: the liquid CO2A plurality of electromagnetic valves are arranged on the conveying pipe, the distance between every two adjacent electromagnetic valves is 200 m, and SF is arranged on a signal wire at the relative position of each electromagnetic valve6Audible and visual alarm, each electromagnetic valve is connected with a signal wire, and each SF6The audible and visual alarm is connected through a signal wire, and the signal wire is connected with the alarm main control console.
6. The liquid CO alarm device based on liquid phase pressure conduction and capable of rapidly leaking and warning liquid CO according to any one of claims 1-52A tubular delivery system, characterized by: the liquid phase pressure guide conveying unit comprises a pressure guide solution preparation tank and a third connecting pipeline, one end of the third connecting pipeline is connected with an outlet end of the pressure guide solution preparation tank, the third connecting pipeline is sequentially connected with a pressure guide solution flow valve, a pressure guide solution booster pump, a pressure guide solution pressure stabilizing valve and a pressure guide solution check valve from front to back, and the other end of the third connecting pipeline is connected to the liquid CO2In the delivery pipe, the pressure guide solution check valve only allows the liquid to flow to the liquid CO in a single direction from the pressure guide solution configuration tank2A delivery pipe.
7. The liquid CO alarm device based on liquid-phase pressure guiding and capable of rapidly alarming leakage according to claim 62A tubular delivery system, characterized by: liquid phase lead to press and prepare the unit including leading to press powder ration to add pump and suction pump, lead to press powder ration to add pump and suction pump all with lead to press solution and prepare the jar and connect.
8. The liquid CO alarm device based on liquid-phase pressure guiding and capable of rapidly leaking and warning liquid CO according to claim 22A tubular delivery system, characterized by: the warning agent conveying unit comprises a warning agent storage tank and a second connecting pipeline connected with an outlet end of the warning agent storage tank, and the second connecting pipeline is sequentially provided with a warning agent flow valve and a liquid-phase SF from front to back6And the other end of the second connecting pipeline is connected to the mixer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920366350.8U CN209944017U (en) | 2019-03-22 | 2019-03-22 | Liquid CO based on liquid phase pressure guide and capable of rapidly leaking and warning2Pipe conveying system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920366350.8U CN209944017U (en) | 2019-03-22 | 2019-03-22 | Liquid CO based on liquid phase pressure guide and capable of rapidly leaking and warning2Pipe conveying system |
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| CN209944017U true CN209944017U (en) | 2020-01-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207021A (en) * | 2019-03-22 | 2019-09-06 | 山东科技大学 | Based on liquid phase pilot and the quick leakage warning liquid CO of energy2Manage defeated system and method |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207021A (en) * | 2019-03-22 | 2019-09-06 | 山东科技大学 | Based on liquid phase pilot and the quick leakage warning liquid CO of energy2Manage defeated system and method |
| CN110207021B (en) * | 2019-03-22 | 2024-08-23 | 山东科技大学 | Liquid CO based on liquid phase pressure guiding and capable of rapidly leaking warning2Tubing system and method |
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