CN105736896A - Hot wax-bearing crude oil pipeline auxiliary starting device - Google Patents
Hot wax-bearing crude oil pipeline auxiliary starting device Download PDFInfo
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- CN105736896A CN105736896A CN201410741025.7A CN201410741025A CN105736896A CN 105736896 A CN105736896 A CN 105736896A CN 201410741025 A CN201410741025 A CN 201410741025A CN 105736896 A CN105736896 A CN 105736896A
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- vehicle frame
- oil pipeline
- actuating apparatus
- pipeline
- auxiliary actuating
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Abstract
The invention relates to the pipeline safety technical field, and discloses a hot wax-bearing crude oil pipeline auxiliary starting device comprising a vehicle frame, a reservoir, a reaction tank, a control system and a propulsion system; the propulsion system is arranged on the vehicle frame and used for pushing the vehicle frame to move; the reservoir and the reaction tank are respectively arranged on the vehicle frame; the reservoir is higher than the reaction tank; the reservoir is connected with the reaction tank through a pipe; the pipe is provided with a cut off valve; the reservoir and the reaction tank are respectively provided with reactant used for gas generation by reaction; the reaction tank is provided with a gas outlet allowing gas to flow out; the control system is respectively connected with the propulsion system and the cut off valve. The vehicle frame is provided with the reservoir and the reaction tank filled with reactants for gas generation; the reservoir and the reaction tank are isolated by the cut off valve; when the crude oil pipeline is started and the cut off valve is opened, the reservoir and the reaction tank are connected, so the reactants can react to form gas, thus fast raising pipeline pressure, so gelling crude oil in the pipeline can rupture, and the pipeline can be re-conducted, thus improving pipeline restart success rate.
Description
Technical field
The present invention relates to pipe safety technical field, particularly relate to a kind of hot waxy oil pipeline auxiliary actuating apparatus.
Background technology
Scheduled shut-down and accident stopping transportation are inevitable production processes in hot waxy oil conduit running.If pipe first-aid overlong time after stopping transportation, in pipe, oil product temperature drop is relatively big, then " solidifying pipe " accident that may result in occurs, and causes heavy economic losses.Therefore, it is necessary to a kind of pipeline auxiliary actuating apparatus of design, to improve pipeline startup success rate, ensure conduit running safety, the economic loss that minimizing accident causes.
The temperature distributing rule of hot oil pipeline is: from head end (departures) to end (entering the station), and in pipe, temperature is gradually lowered, and under normal circumstances, when deep fat enters next heated pump station, temperature will be typically higher than the condensation point 2～3 DEG C of institute's oil transportation product.Therefore, once stopping transportation occur, the oil product temperature near pipe end is easily down to below condensation point, forms stronger jelling structure, and the oil product temperature of close pipeline head end is then usually above oil product condensation point.Accordingly, it would be desirable to the duct length of assistant starting is shorter.
The open CN102836848A of Chinese patent, disclosing a kind of oil pipeline dredging device, include car body, car body front end is provided with screw blade, screw blade is connected with the motor being located in car body, motor is meshed with wheel also by with gear, and motor is also connected with control system, when finding oil pipeline blocking, car body is driven in pipeline, start driven by motor screw blade to rotate, by broken for tamper solution, dredging pipeline.Using the mode of mechanical type unimpeded, circular knife is easily stained with the crude oil of gelling, does not simply fail to make crude oil pipeline restart, also becomes new obstacle.
Although gelled crude has bigger structural strength, but has more significant thixotropic behavior.Once reach critical barometric gradient, its structure can surrender rapidly and crack.In petroleum pipeline start-up course, adopt and start pump to crude oil pipeline acting, make crude oil pipeline have the pressure of startup, make gelled crude crack, thus realizing starting.But the pressure starting pump offer of prior art is after being transmitted through relatively long distance, pressure is often not enough so that gelled crude cracking, and it is low that pipeline restarts success rate.
The hot waxy oil pipeline auxiliary actuating apparatus starting success rate can be improved accordingly, it would be desirable to a kind of.
Summary of the invention
(1) to solve the technical problem that
It is an object of the invention to provide a kind of hot waxy oil pipeline auxiliary actuating apparatus that can improve and start success rate.
(2) technical scheme
In order to solve above-mentioned technical problem, the present invention provides a kind of hot waxy oil pipeline auxiliary actuating apparatus, including: vehicle frame, reserving liquid tank, reaction chamber, control system and propulsion system, described propulsion system is arranged on described vehicle frame, is used for promoting described vehicle frame to move；Described reserving liquid tank and reaction chamber are separately mounted on described vehicle frame, and described reserving liquid tank is higher than described reaction chamber, and described reserving liquid tank is connected by conduit with reaction chamber；Described reserving liquid tank and reaction chamber are respectively provided with for reacting the reactant generating gas；Described conduit is provided with cut-out cock；Described reaction chamber is provided with mean for the venthole that gas flows out；Described control system is connected with described propulsion system and cut-out cock respectively.
Wherein, described venthole is provided with relief valve.
Wherein, described reserving liquid tank is provided with pressure-control valve, and described pressure-control valve is connected with described control system.
Wherein, described propulsion system includes accumulator, screw driver and wheel mechanism, and described wheel mechanism is arranged on described vehicle frame；Described screw driver is arranged on the rear end of described vehicle frame；Described accumulator is connected with described screw driver, is used for providing power.
Wherein, described screw driver includes two propellers, and two described propellers are symmetricly set on two side positions of described vehicle frame rear end, and the rotation direction of two described propellers is contrary.
Wherein, described wheel mechanism includes the two groups of screens pulleys being separately mounted to vehicle frame front and rear, often organizes described screens pulley and is 3, arranges in 120 ° of angles between 3 screens pulleys.
Wherein, described screens pulley includes roller, wheel carrier and elastic shelf, and one end of described wheel carrier is fixed on described vehicle frame, and the other end installs described elastic shelf；Described roller is arranged on described elastic shelf.
Wherein, described elastic shelf includes rectangular frame and spring, and described rectangular frame is hinged successively by 4 straight plates and forms, and described spring is arranged on a pair diagonal position of rectangular frame；Diagonal angle is respectively mounted described roller and wheel carrier by another of described rectangular frame.
Wherein, described control system includes localizer, wireless signal transceiver and pressure transducer, and described wireless signal transceiver is connected with described localizer, pressure transducer respectively.
Wherein, the front end of described vehicle frame is provided with trousers.
(3) beneficial effect
Hot waxy oil pipeline auxiliary actuating apparatus provided by the invention, vehicle frame is installed equipped with the reserving liquid tank and the reaction chamber that react the reactant generating gas, and use cut-out cock to separate, when needs start crude oil pipeline, when starting pump work, the pressure in pipeline is made to increase, now, open the cut-out cock of auxiliary actuating apparatus, make reserving liquid tank connect with reaction chamber, reactant reaction generates gas, gas is discharged in pipeline, improves rapidly the pressure of pipeline, makes the gelled crude in pipeline break, pipeline turns on again, improves the success rate that pipeline is restarted.
Accompanying drawing explanation
Fig. 1 is the left end view of hot waxy oil pipeline auxiliary actuating apparatus embodiment 1 of the present invention；
Fig. 2 is the sectional view in Fig. 1 along A-A direction.
In figure, 1: pipeline；2: vehicle frame；3: reserving liquid tank；4: reaction chamber；5: screens pulley；6: conduit；7: cut-out cock；8: control system；9: central shaft；10: screw driver；101: propeller；11: accumulator；12: trousers.31: pressure-control valve；41: relief valve；51: wheel carrier；52: elastic shelf；53: roller；521: spring；
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following instance is used for illustrating the present invention, but is not limited to the scope of the present invention.
Embodiment 1:
Shown in 2, the hot waxy oil pipeline auxiliary actuating apparatus of the present invention, including: vehicle frame 2, reserving liquid tank 3, reaction chamber 4, control system 8 and propulsion system, propulsion system is arranged on vehicle frame 2, is used for promoting vehicle frame 2 to move.Reserving liquid tank 3 and reaction chamber 4 are respectively provided with for reacting the reactant generating gas, and namely reserving liquid tank 3 is for the first reactant equipped with liquid, and reaction chamber 4 is for reacting generation gas equipped with the second reactant, the first reactant and the second reactant.Reserving liquid tank 3 and reaction chamber 4 are separately mounted on vehicle frame 2, and reserving liquid tank 3 is higher than reaction chamber 4, reserving liquid tank 3 is connected by conduit 6 with reaction chamber 4, one end of conduit 6 is connected to the bottom of reserving liquid tank 3, the other end is connected on reaction chamber 4, enables the liquid stored in reserving liquid tank 3 successfully to flow in reaction chamber 4.Reaction chamber 4 is provided with mean for the venthole that gas flows out；Venthole is provided with relief valve 41.Arranging the threshold values of relief valve 41, when the pressure in reaction chamber 4 reaches setting value, gas flows out from relief valve 41.Conduit 6 is provided with cut-out cock 7；Control system 8 is connected with propulsion system and cut-out cock 7 respectively.
Further, propulsion system includes accumulator 11, screw driver 10 and wheel mechanism, and wheel mechanism is arranged on vehicle frame 2；Screw driver 10 is arranged on the rear end of vehicle frame 2；The front end of vehicle frame 2 is provided with trousers 12.Accumulator 11 is arranged on vehicle frame 2, is positioned at the lower section of reservoir 3, and accumulator 11 is connected with screw driver 10, for providing power to screw driver 10.
Further, screw driver 10 includes two propellers 101, and two described propellers 101 are symmetricly set on vehicle frame 2 rear end two side position, and the rotation direction of two propellers 101 is contrary.The model of two propellers 101 is identical and is arranged symmetrically with, while advancing vehicle frame 2 to move, the turn-back moment loading each produced of cancelling out each other, in case auxiliary actuating apparatus upset or scraping inner-walls of duct, improves the stability in use of auxiliary actuating apparatus.
In the present embodiment, wheel mechanism includes the two groups of screens pulleys 5 being separately mounted to vehicle frame 2 front and rear, and often group screens pulley 5 is 3, and 3 screens pulleys 5 are circumferentially arranged, match with pipeline 1, and in 120 ° of angles between 3 screens pulleys 5.Screens pulley 5 includes roller 53, wheel carrier 51 and elastic shelf 52, and one end of wheel carrier 51 is fixed on vehicle frame 2, and the other end installs elastic shelf 52；Roller 53 is arranged on elastic shelf 52.Elastic shelf 52 includes rectangular frame and spring 521, and rectangular frame is hinged successively by 4 straight plates and forms, and a pair diagonal angle of rectangular frame is respectively mounted roller 53 and wheel carrier 51, and spring 521 is arranged on another of rectangular frame to diagonal position.The rectangular frame the being hinged tensile force by spring 521, rectangular frame is made to have elastic force, therefore, roller 53 has automatic telescopic function, guarantee that auxiliary actuating apparatus can all the time tight against inner-walls of duct, prevent auxiliary actuating apparatus and pipeline from colliding, the frictional resistance in auxiliary actuating apparatus traveling process can be reduced simultaneously.
Being provided with a central shaft 9 on vehicle frame 2, central shaft 9 is positioned at the home position of whole auxiliary actuating apparatus, and namely central shaft 9 is positioned at the center often organizing screens pulley 5.When auxiliary actuating apparatus advances in branch pipe(tube) 1, the position of central shaft 9 is just identical with the axle center of pipeline 1.By central shaft 9, auxiliary actuating apparatus is made to have good stability when advancing in pipeline 1.
Further, reserving liquid tank 3 be arranged over pressure-control valve 31, pressure-control valve 31 is connected with control system 8, control system 8 sends control instruction to pressure-control valve 31, make pressure-control valve 31 opening and closing, thus the pressure controlled in reserving liquid tank 3, control whether the first reactant flows out from conduit 6.When overpressure is beyond limit value, then external control sends control instruction centrally through control system 8 to cut-out cock 7, and cut-out cock 7 isolates two kinds of solution, and chemical reaction stops.When cut-out cock 7 is malfunctioning, the high pressure in pipeline 1 can make pressure-control valve 31 close, and the first reactant in reserving liquid tank 3 cannot flow in reaction chamber 4, makes reaction stop.By pressure-control valve can pressure in dual guarantee pipeline in span of control.
Further, control system 8 includes localizer, wireless signal transceiver and pressure transducer, and wireless signal transceiver is connected with localizer, pressure transducer, propulsion system, pressure-control valve 31 and cut-out cock 7 respectively.Concrete, wireless signal transceiver is connected with screw driver, controls the work of screw driver.Pressure in pressure transducer detection pipeline 1, and it is sent to external control center by wireless signal transceiver, external control is calculated centrally through to signal, sending instructions to wireless signal transceiver, wireless signal transceiver sends a signal to propulsion plant, pressure-control valve 31 and cut-out cock 7.Localizer detects the position signalling of auxiliary actuating apparatus, and by wireless signal transceiver, position signalling is sent to external control center, so that it is determined that the position of auxiliary actuating apparatus, and control propulsion system work or stop.
Reserving liquid tank 3 loads the first reactant, reaction chamber 4 loads the second reactant.In the present embodiment, the first reactant is aluminum sulfate, and the second reactant is sodium bicarbonate；Or the first reactant is sodium bicarbonate, the second reactant is aluminum sulfate.When, after pipeline 1 stopping transportation, auxiliary actuating apparatus being placed in pipe end, external control center sends enabled instruction to control system.After control system 8 receives this enabled instruction, connecting battery circuit, start screw driver, auxiliary actuating apparatus advances to ducts upstream.In auxiliary actuating apparatus progradation, the localizer of control system 8 constantly detects position, and launches framing signal to external control center, by external control center receiving and analyzing.Postponing when device arrives at specific bit, external control center sends cutoff command, and auxiliary actuating apparatus stops in precalculated position.
When pipeline is restarted, the pressure transducer in control system sends " locality " pressure signal to outside control centre, illustrates that when increasing occurs in pressure starting pressure forward has advanced into this position.Now, external control center sends " detonating " instruction.The control system of auxiliary actuating apparatus opens standby pressure-control valve and cut-out cock after receiving " detonating " instruction, and the first reactant in reserving liquid tank flows in reaction chamber through conduit.There is chemical reaction in two kinds of material contacts, produces a large amount of gas.Chemical equation is:
Al2(SO4)3+6NaHCO3=3Na2SO4+2Al(OH)3↓+6CO2↑。
Reacting gas enters pipeline 1 through relief valve, so that pipeline produces high pressure, assistant starting pump destroys the jelling structure of oil product in pipe, makes pipeline recover flowing.
It should be noted that the first reactant and the second reactant are not limited to two kinds of chemical reactants of the present embodiment, any two can produce the chemical reactant that the gas insoluble in crude oil all can use as auxiliary actuating apparatus of the present invention.Second reactant is not necessary for liquid substance, it is possible to for solid matter.Specific requirement is: (1) course of reaction does not absorb heat, namely will not increase oil product structural strength；(2) reaction product matter acidity is not strong, namely will not corrosion pipeline；(3) solid can not be formed block, namely will not block pipeline；(4) generate gas flow many and be not readily dissolved in crude oil, namely do not result in the too much pressure loss.
Preferably, control system 8 can also include CPU (central processing unit), CPU and is connected with wireless signal transceiver, localizer, pressure transducer, propulsion system, pressure-control valve 31 and cut-out cock 7 respectively.When pressure transducer detects pressure buildup, send a signal to CPU, CPU and signal is processed, send control instruction and control cut-out cock 7, pressure-control valve 31 and propulsion system work.
Embodiment 2:
The present embodiment is substantially the same manner as Example 1, is different in that: the wheel mechanism of the present embodiment adopts 4 wheels, 4 wheel lower positions at vehicle frame in rectangular layout.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. a hot waxy oil pipeline auxiliary actuating apparatus, it is characterised in that including: vehicle frame, reserving liquid tank, reaction chamber, control system and propulsion system, described propulsion system is arranged on described vehicle frame, is used for promoting described vehicle frame to move；Described reserving liquid tank and reaction chamber are separately mounted on described vehicle frame, and described reserving liquid tank is higher than described reaction chamber, and described reserving liquid tank is connected by conduit with reaction chamber；Described reserving liquid tank and reaction chamber are respectively provided with for reacting the reactant generating gas；Described conduit is provided with cut-out cock；Described reaction chamber is provided with mean for the venthole that gas flows out；Described control system is connected with described propulsion system and cut-out cock respectively.
2. hot waxy oil pipeline auxiliary actuating apparatus as claimed in claim 1, it is characterised in that described venthole is provided with relief valve.
3. hot waxy oil pipeline auxiliary actuating apparatus as claimed in claim 1, it is characterised in that described reserving liquid tank is provided with pressure-control valve, and described pressure-control valve is connected with described control system.
4. hot waxy oil pipeline auxiliary actuating apparatus as claimed in claim 1, it is characterised in that described propulsion system includes accumulator, screw driver and wheel mechanism, and described wheel mechanism is arranged on described vehicle frame；Described screw driver is arranged on the rear end of described vehicle frame；Described accumulator is connected with described screw driver, is used for providing power.
5. hot waxy oil pipeline auxiliary actuating apparatus as claimed in claim 4, it is characterized in that, described screw driver includes two propellers, and two described propellers are symmetricly set on two side positions of described vehicle frame rear end, and the rotation direction of two described propellers is contrary.
6. hot waxy oil pipeline auxiliary actuating apparatus as claimed in claim 5, it is characterized in that, described wheel mechanism includes the two groups of screens pulleys being separately mounted to vehicle frame front and rear, often organizes described screens pulley and is 3, arranges in 120 ° of angles between 3 screens pulleys.
7. hot waxy oil pipeline auxiliary actuating apparatus as claimed in claim 6, it is characterised in that described screens pulley includes roller, wheel carrier and elastic shelf, and one end of described wheel carrier is fixed on described vehicle frame, and the other end installs described elastic shelf；Described roller is arranged on described elastic shelf.
8. hot waxy oil pipeline auxiliary actuating apparatus as claimed in claim 7, it is characterised in that described elastic shelf includes rectangular frame and spring, and described rectangular frame is hinged successively by 4 straight plates and forms, and described spring is arranged on a pair diagonal position of rectangular frame；Diagonal angle is respectively mounted described roller and wheel carrier by another of described rectangular frame.
9. hot waxy oil pipeline auxiliary actuating apparatus as claimed in claim 1, it is characterised in that described control system includes localizer, wireless signal transceiver and pressure transducer, and described wireless signal transceiver is connected with described localizer, pressure transducer respectively.
10. hot waxy oil pipeline auxiliary actuating apparatus as claimed in claim 1, it is characterised in that the front end of described vehicle frame is provided with trousers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410741025.7A CN105736896B (en) | 2014-12-07 | 2014-12-07 | Hot waxy oil pipeline auxiliary actuating apparatus |
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| CN201410741025.7A CN105736896B (en) | 2014-12-07 | 2014-12-07 | Hot waxy oil pipeline auxiliary actuating apparatus |
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| CN105736896B CN105736896B (en) | 2018-03-16 |
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| CN112984272A (en) * | 2021-02-19 | 2021-06-18 | 秦倩倩 | Auxiliary starting device for hot wax-containing crude oil pipeline for petrochemical industry |
| CN114738593A (en) * | 2022-01-27 | 2022-07-12 | 中国铁建重工集团股份有限公司 | Pipeline robot walking and obstacle crossing device and pipeline robot |
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