CN205635516U - Gas hydrate rapidly synthesizing device - Google Patents

Abstract

The utility model provides a gas hydrate rapidly synthesizing device, include: air supply line, feed pipe way, agitating unit, data acquisition control system. Air supply line is arranged in the gas delivery of gas cylinder to the reation kettle in, this pipeline passes through the gas access an intercommunication of pipeline bottom reation kettle by the export of gas cylinder, the feed pipe way is used for carrying the water of water tank to the reation kettle in, pipeline and reation kettle liquid phase inlet c intercommunication are passed through in the export of this feed pipe route water tank, are provided with the plunger pump on this way communicating pipe, agitating unit does install the agitator in the reation kettle, the stirring of this agitator is smashed the oar and is adopted the oar lobate shaped formula that impels, just installs broken tooth awl below the paddle. The utility model provides a gas hydrate rapidly synthesizing device can accelerate gas hydrate's combined efficiency to gas hydrate's industrialization process has been promoted.

Description

A kind of gas hydrates Fast back-projection algorithm device

Technical field

This utility model relates to exploitation of gas hydrates and utilizes technical field, especially Relate to a kind of gas hydrates Fast back-projection algorithm device.

Background technology

Gas hydrates, are by small molecule hydrocarbon class (mainly CH₄) exist with hydrone A kind of cage modle crystalline solid that Van der Waals force is formed is relied under low temperature and condition of high voltage.Theoretical On, 1m³The releasable 164m of gas hydrates³Standard state CH₄And 0.8m³Water. The methane content contained in the gas hydrates of the whole world is about (1.8-2.1) x10¹⁶m³, quite The twice of the Fossil fuels such as the coal that has been found that in the whole world, oil, natural gas is many.

Due to gas hydrates possess that distribution is wide, reserves are big, energy density is high, green The features such as cleaning, are considered the novel alternative energy source of forth generation of great potential.From 18 generation Ji Qi, multiple countries carry out hydrate the most successively and study and obtain certain achievement, China Find also in the Shenhu sea area of Northern Part of South China Sea and the permafrost band of south, Qilian mountains edge Successfully take and obtained gas hydrates sample.

Hydrate Technology is in energy gas accumulating, mixed gas separation, greenhouse gases capture, sea The fields such as water desalination and cold-storage have a wide range of applications, it is achieved hydrate quickly closes One-tenth is the premise of hydrate commercial applications, and current hydrate Fast back-projection algorithm there is also following The problem of several aspects: (1) formation speed is slow, and (2) gas storage density is low.Therefore, Realizing gas hydrates Fast back-projection algorithm is the application of gas hydrates large-scale commercial Crucial.Therefore the basic research of hydrate Fast back-projection algorithm is combined, under research industrialized condition Gas hydrates Fast back-projection algorithm technology, is the inevitable choice promoting Hydrate Technology to advance.

Utility model content

For the technical problem of above-mentioned existence, this utility model provides a kind of natural gas hydration Thing Fast back-projection algorithm device, realizes gas hydrates and the most quickly generates, and promotes sky So process of industrialization of gas hydrate.

A kind of gas hydrates Fast back-projection algorithm device, including: supply air line, feed pipe Road, agitating device, data acquisition control system；

Described supply air line is for being delivered to the gas in gas cylinder in reactor；This pipeline Connected with the gas access a bottom reactor by pipeline by the outlet of gas cylinder；

Described liquid feeding pipeline is for being delivered to the water of water tank in reactor；This liquid feeding pipeline Connected, at this connecting pipeline with reactor liquid phase entrance c by pipeline by the outlet of water tank On be provided with plunger displacement pump；

Described agitating device for be provided with agitator in described reactor, this agitator Stirring is pulverized oar and is used the blade form that advances, and is provided with broken tooth cone below blade；

Described data acquisition control system includes computer, and the electricity being connected with computer Resistance rate measures some C, pressure measurement point P, temperature measuring point T, level gauging point L, single Phase, multiphase flowmeter measurement point F, parameter identifier point M.

Further, gas hydrates Fast back-projection algorithm device as above, also include Spray equipment；

This spray equipment includes: the top of described reactor is provided with spray thrower, this spray Drench device to be connected with reactor liquid phase entrance c by pipeline, this connecting pipeline is provided with Liquid circulation pump.

Further, gas hydrates Fast back-projection algorithm device as above, also include Bubbling device；

This bubbling device includes the bubbler being arranged on bottom reactor.

Further, gas hydrates Fast back-projection algorithm device as above, described confession Air pipe includes for being gone out by the gas unreacted in the reactor gas from reactor top Mouthful b pumps out and circulates the gas access a pumping into Polycondensation Reactor and Esterification Reactor portion by gas circulator Gas bypassing regulation closed circuit.

Further, gas hydrates Fast back-projection algorithm device as above, described gas Body bypass regulation closed circuit is provided with the road gas shield for protective gas circulating pump Closed circuit, this gas shield closed circuit is constituted by being sequentially connected with lower component: gas Circulating-pump outlet, second regulation valve, the 4th pressure indicator, the 4th thermindicator, 4th regulation valve, the first gas flowmeter, the second pressure indicator, the second temperature instruction Device, gas circulator entrance.

Further, gas hydrates Fast back-projection algorithm device as above, described spray Shower device include a road for protecting the protection closed circuit of liquid circulation pump, this protection follows Loop back path is specifically constituted by being sequentially connected with lower component: liquid circulation pump outlet, the 7th adjust Joint valve, the 7th thermindicator, the 17th pressure indicator, first liquid effusion meter, 9th regulation valve, the 6th thermindicator, the 16th pressure indicator, liquid circulation pump Entrance.

Further, gas hydrates Fast back-projection algorithm device as above, including using In make the pressure within reactor be in constant or be under required pressure condition steady Pressure pipe road；This stabilivolt route liquid phase pipeline and gas phase pipeline 2 part are constituted；

Wherein, liquid phase pipeline is entered by the liquid phase bottom water tank, plunger displacement pump, voltage stabilizing surge tank Mouth d, liquid-phase outlet h, second row water valve are sequentially connected with composition by pipeline；

Described gas phase pipeline by the outlet of gas cylinder, the gas phase entrance f on voltage stabilizing surge tank top, Gas access a bottom the gaseous phase outlet g of voltage stabilizing surge tank, reactor is by pipeline successively Connect and compose.

Further, gas hydrates Fast back-projection algorithm device as above, described It is also associated with vacuum pump on voltage stabilizing surge tank.

Further, gas hydrates Fast back-projection algorithm device as above, described The 3rd thermindicator, the 3rd pressure indicator, the first liquid level it is equipped with on voltage stabilizing surge tank Indicator and the second relief valve, voltage stabilizing surge tank periphery is provided with jacket heat-exchanger, changes It is provided with guiding gutter, by voltage stabilizing surge tank refrigeration unit by the first inlet valve inside hot device It is adjusted controlling to the temperature in reactor with the first flowing water Valve.

Further, gas hydrates Fast back-projection algorithm device as above, described Be provided with the 5th pressure indicator on reactor, the 5th thermindicator, the second liquid level refer to Show device and resistivity indicator；

Reactor periphery is provided with jacket heat-exchanger, is provided with guiding gutter inside heat exchanger, by Reactor refrigeration unit passes through the second inlet valve and flowing water Valve to the temperature in reactor It is adjusted controlling.

The gas hydrates Fast back-projection algorithm device that this utility model provides, it is possible to accelerate sky So combined coefficient of gas hydrate, thus promoted the process of industrialization of gas hydrates.

Accompanying drawing explanation

Fig. 1 is this utility model gas hydrates Fast back-projection algorithm apparatus structure schematic diagram；

With 2 this utility model data acquisition control system structural representations.

Detailed description of the invention

For making the purpose of this utility model, technical scheme and advantage clearer, below this Technical scheme in utility model is clearly and completely described, it is clear that described Embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on Embodiment in this utility model, those of ordinary skill in the art are not making creativeness The every other embodiment obtained under work premise, broadly falls into this utility model protection Scope.

As shown in Figures 1 and 2, the module that this utility model is main is exactly natural gas hydration The quick preparation of thing large sample, this utility model hydrate preparation system uses bubbling, spray Drench and the mode that combines of stirring, this system by reactor, supply and gas-circulating system, Feed flow and fluid circulation system, mechanical enhancer action system, voltage stabilizing buffer system, valve And the composition such as pipeline fittings.

Reactor mainly provides hydrate preparation and memory space, by refrigeration unit control Internal water and the temperature of reaction medium, set up three kinds of hydrate Fast back-projection algorithm inside reactor Device, sets up agitator in the middle of kettle, still upper frame sets spray thrower and bubbler is installed in bottom, Kettle be provided with the 5th pressure indicator P-105, the 5th thermindicator T-105, second Fluid level indicator (differential pressure type level gauge L-102) and resistivity indicator C-101, reaction Still periphery is provided with jacket heat-exchanger, is provided with guiding gutter, by refrigeration unit inside heat exchanger By the second inlet valve V-401 and the second flowing water Valve V-402 to the temperature in reactor It is adjusted controlling.

Gas injection and gas-circulating system include that gas cylinder, the 6th pressure of detection storage pressure refer to Show device P-106, the first stop valve V-101, the first pressure indicator P-101, the first temperature Degree indicator T-101, the 4th stop valve V-104, main air inlet pipeline is installed the second pressure and is referred to Show device P-102, the second thermindicator T-102, gas circulator, the second regulation valve CV-105, the 4th pressure indicator P-104, the 4th thermindicator T-104, the 3rd tune Joint valve CV-108, the second gas flowmeter F-102, the 6th stop valve V-110, escape pipe It is equipped with exhaust-valve V-111, the 5th stop valve V-112 on road, bypass regulation pipeline is equipped with 4th regulation valve CV-109, the first gas flowmeter F-101.

Fluid injection and fluid circulation system include water tank, the 7th stop valve V-201, plunger displacement pump, Be equipped with the 5th regulation valve CV-204 on fluid injection pipeline, the 8th stop valve V-205, liquid follow Be equipped with on ring main line the 6th regulation valve CV-206, the 6th thermindicator T-201, the 16 pressure indicator P-201, liquid circulation pump, the 7th regulation valve CV-208, the 7th Thermindicator T-202, the 17th pressure indicator P-202, second liquid effusion meter It is equipped with first liquid effusion meter on F-202, the 8th regulation valve CV-209, bypass regulation pipeline F-201, flow control valve (the 9th regulation valve CV-207).

Voltage stabilizing buffer system includes main equipment voltage stabilizing surge tank, and upper space fills gas, Side is connected with gas cylinder by the 3rd stop valve V-103, and opposite side passes through the 6th stop valve V-106 is connected with air inlet pipeline, simultaneously by the 18th stop valve V-301, the 7th pressure Indicator P-301 couples with vacuum pump, it is achieved operate whole vacuum-pumping loop；Voltage stabilizing is delayed Rushing the water filling of tank bottom, the 11st stop valve V-202, the 18th pressure indicator are passed through in side P-203 is connected with water tank and water influent pipeline, and opposite side couples second row water valve V-203, with Time voltage stabilizing surge tank on be equipped with the 3rd thermindicator T-103, the 3rd pressure indicator P-103, the first fluid level indicator (differential pressure type level gauge L-101) and the second relief valve V-107, Surge tank periphery is provided with jacket heat-exchanger, is provided with guiding gutter inside heat exchanger, by freezing Unit passes through the first inlet valve V-403 and the first flowing water Valve V-404 in reactor Temperature be adjusted control.

Feed flow and fluid circulation system provide hydrate respectively with supply and gas-circulating system Liquid water and natural gas circulation drive ram during generation；Mechanical enhancer acts on hydration Thing Fast back-projection algorithm experimentation；Voltage stabilizing buffer system plays system pressure adjusting function；Gas Bottle, it is provided that the gas required for experiment；The function of vacuum pump is first before pipeline is inflated Air in pipeline is emptied, to avoid natural gas and oxygen mix.Plunger displacement pump acts on and is System water filling moisturizing operation；Valve and pipe fitting control Basic circuit fluid flow；Whole experiment The parameters such as the pressure in loop, temperature and flow are acquired by data acquisition control system And store.

As shown in Figures 1 and 2, the gas hydrates that this utility model provides quickly close Become device, including: supply air line, liquid feeding pipeline, agitating device, data acquisition control System:

Wherein, described supply air line is for being delivered to reactor by the gas in gas cylinder 118 In 115；This pipeline by the outlet of gas cylinder 118 by the gas bottom pipeline and reactor 115 Body entrance a connects；This pipeline is constituted by being sequentially connected with lower component: gas cylinder the 118, the 6th Pressure indicator P-106, the first stop valve V-101, first regulation valve CV-102, first Pressure indicator P-101, the first thermindicator T-101, the 4th stop valve V-104, Second pressure indicator P-102, the second thermindicator T-102, gas circulator 111, Second regulation valve CV-105, the 4th pressure indicator P-104, the 4th thermindicator T-104, 3rd regulation valve CV-108, the second gas flowmeter F-102, the 6th stop valve V-110, Gas access a bottom reactor 115.

Preferably, described supply air line includes for by gas unreacted in reactor 115 Body is pumped out and circulating pump by gas circulator 111 from the gas outlet b on reactor top The gas bypassing entering the gas access a bottom reactor 115 regulates closed circuit；This gas Body closed circuit is specifically constituted by being sequentially connected with lower component: the gas on reactor top goes out Mouth b, the 3rd gas flowmeter F-103, the 5th stop valve V-112, the second pressure instruction Device P-102, the second thermindicator T-102, gas circulator 111, second regulate valve CV-105, the 4th pressure indicator P-104, the 4th thermindicator T-104, the 3rd tune Joint valve CV-108, the second gas flowmeter F-102, the 6th stop valve V-110, reactor Gas access a bottom 115.

Further, in order to ensure that gas circulator 111 can run normal safe, This utility model is also provided with a road for protective gas circulating pump for gas circulator 111 Gas shield closed circuit；This gas shield closed circuit is sequentially connected with by with lower component Constitute: gas circulator 111 exports, the second regulation valve CV-105, the 4th pressure indicate Device P-104, the 4th thermindicator T-104, the 4th regulation valve CV-109, the first gas Effusion meter F-101, the second pressure indicator P-102, the second thermindicator T-102, Gas circulator 111 entrance.

Described liquid feeding pipeline is for being delivered to the water of water tank 113 in reactor 115；Should Liquid feeding pipeline is connected with reactor liquid phase entrance c by pipeline by the outlet of water tank 113, This connecting pipeline is provided with plunger displacement pump 112；This liquid feeding pipeline is specifically depended on by with lower component Secondary connect and compose: water tank the 113, the 7th stop valve V-201, plunger displacement pump the 112, the 5th are adjusted Joint valve CV-204, the 8th stop valve V-205, reactor liquid phase entrance c；

Described agitating device is for be provided with agitator 119 in described reactor 115, and this stirs Oar employing propelling blade form is pulverized in the stirring mixing device 119, and is provided with below blade Broken tooth cone.

The stirring of this agitator 119 is pulverized oar and is used propelling blade form, its objective is to use In the contact area of increase gas with liquid, thus accelerate the synthesis of gas hydrates, And broken tooth cone is installed below blade, in order to multiple dimensioned broken at gas hydrates During the natural gas of required particle diameter time gas hydrates are broken into the transfer of slurry fidelity Hydrate solids block.

Described data acquisition control system includes computer, and the electricity being connected with computer Resistance rate measures some C, pressure measurement point P, temperature measuring point T, level gauging point L, single Phase, multiphase flowmeter measurement point F, parameter identifier point M.

Further, for the response area of larger fluid Yu gas, this utility model is also It is provided with spray equipment at the top of reactor, is accelerated by bypass Sprayer Circulation loop The synthesis of natural gas hydrate；Described bypass Sprayer Circulation loop is specifically by with lower component successively Connect and compose: reactor liquid phase entrance c, the 9th stop valve V-212, the 6th regulation valve CV-206, the 6th thermindicator T-201, the 16th pressure indicator P-201, liquid Circulating pump the 114, the 7th regulation valve CV-208, the 7th thermindicator T-202, the 17th Pressure indicator P-202, second liquid effusion meter F-202, the 8th regulation valve CV-209, Tenth stop valve V-211, the spray thrower 1151 on reactor 115 top.

Preferably, properly functioning in order to ensure the safety of described liquid circulation pump 114, this Utility model also devises a road protection closed circuit, this protection for liquid circulation pump 114 Closed circuit is specifically constituted by being sequentially connected with lower component: liquid circulation pump 114 exports, 7th regulation valve CV-208, the 7th thermindicator T-202, the 17th pressure indicator P-202, first liquid effusion meter F-201, the 9th regulation valve CV-207, the 6th temperature refer to Show device T-201, the 16th pressure indicator P-201, liquid circulation pump 114 entrance.

Described voltage stabilizing pipeline is for making the pressure within reactor be in constant or be in institute Under the pressure condition needed；This voltage stabilizing pipeline includes liquid phase pipeline and gas phase pipeline 2 part； Wherein liquid phase pipeline is constituted by being sequentially connected with lower component: water tank the 113, the 7th stop valve V-201, plunger displacement pump the 112, the 18th pressure indicator P-203, the 11st stop valve V-202, Liquid phase entrance d bottom voltage stabilizing surge tank 117, liquid-phase outlet h, second row water valve V-203； Described gas phase pipeline is constituted by being sequentially connected with lower component: gas cylinder the 118, the 6th pressure indicates Device P-106, the first stop valve V-101, the first regulation valve CV-102, the 3rd stop valve V-103, the gas phase entrance f on voltage stabilizing surge tank 117 top, the gas of voltage stabilizing surge tank 117 Export g, the 6th stop valve V-106, the 3rd regulation valve CV-108, the second gas stream mutually Gas access a bottom gauge F-102, the 6th stop valve V-110, reactor 115； The liquid phase pipeline of this voltage stabilizing pipeline is for injecting liquid, gas phase pipeline in voltage stabilizing surge tank For to injecting gas in voltage stabilizing surge tank, then gradually rising when liquid level, simultaneously Along with the increase of gas in tank, the gas of tank body under the trend that liquid level is gradually increasing, its Internal pressure is gradually increased；When insufficient pressure within reactor, it is possible to pass through Voltage stabilizing surge tank gaseous phase outlet g provides certain gas for reactor；Or pass through plunger Pump 112 pumps into water from water tank 113 in voltage stabilizing surge tank, to increase voltage stabilizing surge tank 117 Pressure with reactor 115；When pressure abundance in reactor, it is possible to by Water within voltage stabilizing surge tank is discharged by two drain valve V-203, thus reduces the pressure in tank Power；Or reduce the pressure in voltage stabilizing surge tank by vacuum pump 116.

This utility model is also provided with the 3rd temperature instruction on described voltage stabilizing surge tank 117 Device T-103, the second relief valve V-107, the 3rd pressure indicator P-103, the first liquid level Indicator L-101.

Further, this utility model is provided with voltage stabilizing on described voltage stabilizing surge tank 117 Surge tank refrigeration unit 120, these refrigeration unit 120 two ends respectively with voltage stabilizing surge tank 117 Periphery be connected to into its freeze；At this refrigeration unit 120 and voltage stabilizing surge tank 117 Between be respectively arranged with the first inlet valve V-403, the first flowing water Valve V-404 on pipeline.

Further, described voltage stabilizing surge tank 117 is also associated with vacuum pump 116, The 7th pressure instruction it is provided with on pipeline between vacuum pump 116 and voltage stabilizing surge tank 117 Device P-301, the 18th stop valve V-301.

Further, the bottom in reactor 115 is provided with bubbler 122, this bubbling Device 122 is for increasing the contact area of gas and liquid, thus accelerates gas hydrates Synthesis.

More than based on, this utility model is when preparing synthesis of natural gas hydrate, not only It is passed through the liquid internal with it by gas from the bottom of reactor to carry out reacting synthesizing Gas hydrates, and in order to accelerate the efficiency of synthesis of natural gas hydrate, this practicality Novel by the way of stirring, bubbling and spray, increase contacting of gas and liquid Area, thus accelerate the synthesis of gas hydrates.

Further, reactor 115 is additionally provided with the second fluid level indicator L-102, Resistivity indicator C-101, the 5th thermindicator T-105, the 5th pressure indicator P-105 measures the real-time status of reactor.

Further, being provided with reactor refrigeration unit 123 on reactor 115, this is anti- The two ends answering still refrigeration unit 123 are connected with the peripheral of reactor 115 respectively, anti-at this Answer and on the pipeline between still refrigeration unit 123 and reactor 115, be respectively arranged with the second water inlet Valve V-401, the second flowing water Valve V-402.

Further, the connecting line of reactor liquid phase entrance c is provided with first row Water valve V-210；The connecting line of reactor gaseous phase outlet b is provided with exhaust-valve V-111.

Described data acquisition control system includes: resistivity measurement point C, pressure measurement point P, Temperature measuring point T, level gauging point L, single-phase, multiphase flowmeter measurement point F, Parameter identifier point M；

Wherein, resistivity measurement point C is for coming by resistivity by measuring in reactor The resistivity of gas hydrates, thus analyze the conjunction judging ocean gas hydrate Becoming effect, the resistivity curve according to gathering compares and reference, real-time by curve The generation process of display hydrate；

It is internal and each that described pressure measurement point P is used for measuring voltage stabilizing surge tank, reactor Pressure on individual pipeline, does, by this measurement result, whole experimental loop system of monitoring in real time Pressure, it is ensured that gas hydrates are the most quickly prepared, and by inside reactor Change in pressure drop situation and pressure history judge the generation of gas hydrates in reactor Situation, balance each other state；

It is internal and each that described temperature measuring point T is used for measuring voltage stabilizing surge tank, reactor By this measurement result, temperature on individual pipeline, ensures that gas hydrates are the most quickly made Standby；And judge reaction by reactor internal temperature situation of change and temperature variation curve The generation situation of gas hydrates in still, balance each other state；

Described level gauging point L is for measuring voltage stabilizing surge tank, reactor internal liquid Height condition, the water injection rate being used as in experimentation in reactor by this measurement result and Generate the judge index that the hydrate quantity after hydrate is how many；

Described single-phase, multiphase flowmeter measurement point F passes through respective tube for measurement The real-time traffic of the fluid (gas, liquid, mixed phase) in road, and by this measurement Result judges to calculate natural gas and the consumption of water, the gas storage of researching natural gas hydrate Amount；

Described parameter identifier point M is for measuring the mixing parametric of agitator in reactor (such as: rotating speed), breakage parameter (such as: broken rotating speed, broken moment of torsion, propelling pressure, Grinding depth, cracking pressure), spray thrower parameter (such as: spray angles, Spraying rates, Droplet size) and bubbler parameter (such as: bubbling rate, bubbling size), and pass through The data that this measurement result records can be as controlling the mixing parametric of fragmentation stirrer, breaking Broken ginseng number, spray thrower parameter, the foundation of bubbler parameter, experimenter can use accordingly The mode that Bubbling method, spray process, paddling process three combine, it is possible to utilize the most a certain Or the quickly generating of certain two methods strengthening gas hydrates, or by stirring ginseng Number, breakage parameter, spray thrower parameter, the control of bubbler parameter, study a certain parameter Natural gas gas hydrate is the most quickly prepared the impact of speed.

1, prepared by hydrate sample

1.1 hydrate preparations prepare

(1) evacuation operation: make V-101 be closed, simultaneously close off exhaust-valve V-111, the 7th stop valve V-201 and second row water valve V-203 so that it is he is in by valve Opening, starts vacuum pump 116 evacuation, (passes through when reaching certain vacuum 7th pressure indicator P-301 measures) time, close the 18th stop valve V-301, close Vacuum pump 116.Open the first stop valve V-101, fill gas to experimental loop, fill Close the first stop valve V-101 after completing, be again started up vacuum pump 116 and carry out evacuation behaviour Make, be so repeated several times, reduce air capacity in loop.

(2) level calibration operation: capping still upper cover, control valve, makes second Drain valve V-203, the 6th stop valve V-106, the 18th stop valve V-301, first row Water valve V-210, the 5th stop valve V-112 are closed, make the 7th stop valve V-201, 11st stop valve V-202, the 5th regulation valve CV-204, the 8th stop valve V-205, Exhaust-valve V-111 is in opening, starts plunger displacement pump 112 by voltage stabilizing surge tank 17 He Reactor 115 empties and fills water, Criterion water level and close the 4th stop valve V-104, 11st stop valve V-202, the 8th stop valve V-205, exhaust-valve V-111；

(3) gas injection operation: open the first stop valve V-101, the first regulation valve CV-102 Control methane gas injection pressure (preventing methane gas HVDC from bringing potential safety hazard), Circuit system is made to be full of the natural gas of certain pressure.

(4) water level regulation operation: regulation the 5th stop valve V-112 and first row water valve V-210, is forced down reactor water level to suitable level by natural gas, closes the first draining Valve V-210；Regulate the 3rd stop valve V-103 and second row water valve V-203, by natural Water level in voltage stabilizing surge tank 117 is forced down to suitable level by gas, closes second row water valve V-203。

(5) moisturizing supercharging operation: when circuit pressure no longer promotes, closes the first cut-off Valve V-101, opens the 7th stop valve V-201, the 11st stop valve V-202, starts post Plug pump 112, to voltage stabilizing surge tank 117 moisturizing supercharging, when voltage stabilizing surge tank 117 reaches real When testing pressure (being measured by the 3rd pressure indicator P-103), close plunger displacement pump 112, Close the 7th stop valve V-201, the 11st stop valve V-202.

1.2 lanthanum chloride hydrate experimental implementation

(1) refrigeration operation: start reactor refrigeration unit 123 and carry out water-bath refrigeration, if It is set to constant hydrate and generates requirement of experiment temperature.

(2) gas cycle operation: start gas circulator 111, regulation the second regulation valve CV-105 and the 3rd regulation valve CV-108 or the 4th regulation valve CV-109, i.e. passes through gas Main road circulation and bypass regulation, make to meet experiment by the gas discharge of reactor 115 Demand, gas injects from reactor 115 bottom, enters reactor 115 in the way of bubbling In, flow out from upper end cover and be circulated.

(3) stirring operation: start agitator 119, speed setting is that suitable hydrate is raw Become, can not destroy again the gathering of hydrate requirement of experiment (stepless speed regulation scope 100～ 400r/min)。

(4) spray operation: start liquid circulating pump 114, regulation the 6th regulation valve CV-206, 9th regulation valve CV-207 or the 8th regulation valve CV-209, by liquid main road circulation with Bypass circuit, makes to meet requirement of experiment by the liquid inlet volume of upper end cover nozzle.

(5) voltage stabilizing operation: open the 7th stop valve V-201, the 11st stop valve V-202, 6th stop valve V-106, starts plunger displacement pump 112 and makes loop to voltage stabilizing surge tank 117 water filling System boost, or open the 6th stop valve V-106, second row water valve V-203 draining make be System blood pressure lowering, circuit system pressure is by the second pressure indicator P-102, the 4th pressure indicator P-104 and the 5th pressure indicator P-105 records, and makes system pressure by supercharging reduced pressure operation Trying hard to keep, it is fixed to keep steady.

(6) flow measurement: the second gas flowmeter F-102, the 3rd gas flowmeter F-103 The import and export methane gas integrated flow of batching cycle, is counted by cumulative measurement value respectively Calculate the air consumption (MaterialBalance Computation method) that hydrate generates.

(7) resistance measurement operation: be formed around 4 some resistance measuring points at reactor 115 C-101, is analyzed by the resistivity measured and judges that the synthesis of ocean gas hydrate is imitated Really；Resistivity curve according to gathering compares and reference, is shown in real time by curve The generation process of hydrate.

(8) temperature and pressure measure operation: be formed around the 5th thermindicator at reactor 115 T-105, the 5th pressure indicator P-105, analyze judgement by the temperature-pressure curve measured The synthetic effect of ocean gas hydrate.

(9) operation is terminated: the sample prepared when ocean gas hydrate meets experiment need When asking, closedown gas circulator 111 (supercharger), closedown the 6th stop valve V-110, 5th stop valve V-112, closing liquid circulating pump 114, closedown the 9th stop valve V-212, Tenth stop valve V-211, ocean gas hydrate is quickly prepared experiment and is terminated.

The mixing parametric (such as: rotating speed) of this utility model reactor agitator, broken ginseng Number (such as: broken rotating speed, broken moment of torsion, propelling pressure, grinding depth, cracking pressure), Spray thrower parameter (such as: spray angles, Spraying rates, droplet size) and bubbler ginseng Number (such as: bubbling rate) is controlled；

Oar choosing is pulverized in the preparation stirring preparing reactor of this utility model gas hydrates Selecting propelling blade form, and install broken tooth cone below blade, simulated sea bottom is dug up mine The form of car, the purpose broken to reach hydrate；In gas hydrates reactor Agitator uses frequency conversion motor, electrodeless decelerator to realize stirring and pulverizes the rotation of oar, two-stage Hydraulic jack realizes moving up and down of stirring paddle；

This utility model is provided with the second fluid level indicator (differential pressure type on described reactor Liquidometer L-102).

This utility model is formed around 4 some resistance measuring point C-101 at reactor, by surveying The resistivity of amount analyzes the synthetic effect judging ocean gas hydrate, according to collection Resistivity curve compare and reference, shown the generation of hydrate in real time by curve Process；It is formed around temperature, pressure measuring element, by the temperature and pressure measured at reactor Curve analyzes the synthetic effect judging ocean gas hydrate.

This utility model passes through the second gas flowmeter F-102 and the 3rd gas flowmeter meter Amount F-103 metering gas hydrates generate during air consumption, by the of reactor Water consumption in two liquidometer L-102 metering hydrate formations, according to measured Data on flows can the gas storage density of COMPREHENSIVE CALCULATING gas hydrates.

Experimentation provides the refrigeration unit of refrigeration for reactor and voltage stabilizing surge tank Possess refrigeration, heat two kinds of functions；

Reactor is the nucleus equipment of hydrate preparation system, for vertical third class(grade) pressure vessel, Mainly by flat cover, vessel flange, outlet flange, cylinder, end socket, water inlet, enter QI KOU, base plate, rabbling mechanism, spraying mechanism, the parts such as bubbling mechanism, measuring cell Composition, reactor temperature is controlled by refrigeration unit, kettle surrounding layout points electricity Sensor is measured in resistance, also sets even foaming device, sprayer unit, agitating device inside bottom Strengthening mixing wastewater with air process.

Reactor parameter is as follows:

Design pressure: 16MPa

Design temperature :-15～40 DEG C

Kettle size: Φ 600 × 1000 (mm)

Cavity total measurement (volume): 500L

Ratio of height to diameter: 1.5～2.5

Maximum working pressure: 12MPa

Operating temperature: 0 DEG C～30 DEG C

Hydrostatic test pressure: 20MPa

Working media: water and natural gas, chemical reagent etc.

Main material: 0Cr18Ni10Ti or employing steel alloy add Stainless steel 316 material anticorrosive coat Projected life: 30 years

This utility model high pressure is prepared still and is selected polyfluoroprene round section joint ring, and manufacturing expense is low and makes With convenient, installing force is low, resistant to chemical media and carbon dioxide, anti-extrusion, anti-gas Quick-fried.Along with the development of material, static seal pressure is up to 70MPa.At present at boats and ships heavy industry Hyperbaric cabin all uses this type of to seal, so being entirely capable of meeting native system sealing property requirement.

Owing to high pressure prepares still surface of internal cavity, can contact with the medium generation in still (sea water, Methane, chemical agent etc., have corrosivity), therefore need it is carried out preservative treatment, to ensure High pressure prepares serviceability and the service life of still.

Prepare the moist area such as still surface of internal cavity, end socket inner surface and the hole that contacts with medium, Use special process hot melt Monel 400 alloy anticorrosive coat.The group of Monel 400 alloy Being woven to the single phase solid solution of high intensity, it is that a kind of consumption is maximum, purposes is the widest, comprehensively The corrosion resistant alloy that performance is splendid.This alloy has excellence in Fluohydric acid. and fluorine gas medium Corrosion resistance, also has excellent corrosion resistance to hot concentrated alkali liquid.The most resistance to neutral solution, water, The corrosion of sea water, air, organic compound etc..One key character of this alloy is one As do not produce stress corrosion cracking (SCC), cutting ability is good.

The design of voltage stabilizing surge tank

For ensureing that system pressure is stable in the running of loop, circuit system arranges 1 voltage stabilizing Device.Regulator design parameter can be determined according to associated loop volume.For reducing manostat chi Very little, the equipment selecting 3 same volumes of processing is used in parallel.

Regulator design parameter is as follows:

The moistening portion such as voltage stabilizing surge tank surface of internal cavity, end socket inner surface and the hole that contacts with medium Position, uses special process hot melt Monel 400 alloy anticorrosive coat.Monel 400 closes The single phase solid solution being organized as high intensity of gold, it is that a kind of consumption is maximum, purposes is the widest, The corrosion resistant alloy that combination property is splendid.This alloy has excellent in Fluohydric acid. and fluorine gas medium Different corrosion resistance, also has excellent corrosion resistance to hot concentrated alkali liquid.The most resistance to neutral solution, The corrosion of water, sea water, air, organic compound etc..

Rabbling mechanism

Design parameter:

Hydrate prepares speed of agitator: 100～400r/min (stepless time adjustments)；

Power of agitator: 7.5Kw, adjustable frequency motor；

From speed of agitator on the Related literature analysis of the impact that hydrate generates and reference, this is System pressure 12MPa, operating temperature assumes at-5～15 DEG C, speed of agitator 100～ 400r/min, can reach ideal effect, and the coupling of temperature, pressure and rotating speed is permissible Verify in actual applications.

Hydrate preparation stirring is pulverized oar and is selected to advance blade form, it is adaptable to medium-high viscosity liquid The mixing of body, conduct heat or the process such as reaction.Agitator surface spraying Teflon (polytetrafluoro Ethylene) anticorrosive coat, surface hardness is relatively low, can play requirement for anticorrosion, reduce again as far as possible To hydrate injury during becoming.

Hydrate stirring operation is mainly completed by rabbling mechanism.Rabbling mechanism includes hydraulic pressure control System and motor control the rotation crushing motion of double control motor control realization stirring paddle, hydraulic pressure Control realization stirring paddle obtains and enters level motion up and down, it is achieved the Stirring in hydrate space Fragmentation.

Spraying mechanism

Nebulization technical parameter operating pressure: 16MPa；Operating temperature :-10～60 DEG C；Spraying row Amount: 10L/min；Select Germany's SPECK high-pressure plunger pump, be satisfied with requirement of experiment.

Nebulization is to prepare in still through nozzle atomization to gassiness by aqueous solution, makes solution dispersion In gas phase, the beneficially generation of hydrate；This experimental system is to be full of in high pressure prepares still 12MPa high-pressure natural gas, aqueous solution, is pressurizeed by atomizing pump through voltage stabilizing overflow valve by bottom, Realization is prepared the method for water circulation spraying and is prepared hydrate, and the total amount preparing water is constant；Spraying Method can greatly increase gas water contact area, thus realizes generating rate prepared by hydrate.

Bubbling mechanism

Composition: flow control valve, air compressor, gas-booster, effusion meter, unidirectional Valve, atomizing pump, overflow valve, pipe valve etc. form.

Bubble method technical parameter:

Operating pressure: 16MPa；Operating temperature :-10～60 DEG C；Gas displacement: 50L/min.

(1) gas injection porous web board component is made up of orifice plate, filter screen, pressing plate, gas injection shower nozzle；

(2) this device uses porous plate, and plate is covered with countless aperture the least (＜ Φ 2mm) Eyelet, then one layer of stainless steel filtering net of clamping, prevent sand grains from leaking into gas injection interlayer, methane Gas circulates injection from bottom to top, it is achieved hydrate is quickly prepared；

(3) gas injection shower nozzle uses nonmetal PEEK material, good heat-insulation effect, and surface has Having and anti-bonding stick together effect, factor generates Hydrate Plugging shower nozzle to prevent gas injection supercool etc..

Standard device type selecting

(1) air compressor machine type selecting

According to experiment needs, in native system, the function of air compressor is to gas boosting pump There is provided power, it is desirable to its pressure rating is wide, thus matches booster pump and be relatively easy to.So, Select is piston type air compressor.

Design parameter is as follows:

Table 1DW-3.0/0.7 technical parameter table

(2) booster pump

Using twin-tub gas boosting pump, can produce continuous print pressurization gas, exit gas flow is relatively It is stable

Table 2STT40 technical parameter table

(3) vacuum pump

Hydrate exploitation high pressure is prepared still and can be poured methane and wet titanium dioxide in experimentation Carbon, medium is inflammable and explosive, is corrosive, so selecting diaphragm-type vacuum pump.According to upper Review is stated, and what native system was selected is the novel combination type molecule of turbomolecular pump group 2X-70 Pump, can produce the vacuum of 6 × 10-7bar, have simultaneously and use simple and reliable feature, By user all over the world

Table 3 technical parameter table

(4) plunger displacement pump

The intake performance that plunger displacement pump is the best, and the best self-priming performance.Therefore, For most reciprocating pumps, the most generally it is not required to pump priming.Machine efficiency is high, energy-conservation. According to experimental technique parameter and requirement of experiment, this pump type selected and the following institute of parameter Show:

Table 4 high-pressure plunger pump type selecting result

(5) refrigeration unit

The mode that this utility model uses reactor to immerse water-bath temperature controlling groove controls reaction temperature Degree, tank dress cooling liquid, then liquid level submergence kettle.Refrigeration is come real by circulating slot Existing, circulating slot has refrigeration, two functions of circulation, can manually set temperature, control water The temperature of bath.Reactor is placed in hydrate water at low temperature bath cabinet, is hydrated by setting The temperature of thing water at low temperature bath cabinet controls the temperature of reactor.Hydrate water at low temperature bath cabinet Temperature is controlled on computers by digital control system, and all measurement signals all can be by data acquisition Truck collection also shows on computers and stores.

Hydrate water at low temperature bath cabinet design parameter is as follows:

[temperature control scope]-15～60 DEG C

[temperature-controlled precision] ± 0.2 DEG C

[heat exchange power] 2000W

[liner material] 304 or 316 type rustless steel

[inner bag volume] can accommodate the reactor of 5 500ml simultaneously

(6) temperature sensor

According to experimental system demand, this time selection PT100 platinum resistance thermometer sensor, is as temperature-measuring element, Pt100 is platinum resistance thermometer sensor, and its resistance can change along with the change of temperature.After PT 100 i.e. represent that its resistance when 0 DEG C is 100 ohm, and when 100 DEG C, its resistance is about 138.5 ohm.Its resistance can rise, along with temperature, the growth forming approximation at the uniform velocity.But he Relation between is not the relation of simple direct ratio, and more should level off to a throwing Thing line

(7) pressure transducer

By many considerations such as combination property, price, this time pressure used by experimental system passes Sensor is gloomy scholar's DG series pressure sensor of receiving.DG series super-high pressure inverting Device Sen Nashi researches and develops and obtains the product of utility model patent voluntarily, and detection pressure is up to 700MPa, precision is up to 0.25 grade.Stable and reliable for performance, easy for installation, it is adaptable to The process measurement of the occasions such as oil drilling rock formation analysis earth's core environmental simulation test, tool There are the functions such as anti-over-voltage and over-current reverse protection

(8) electromagnetic flowmeter

Intelligent electromagnetic flowmeter measuring principle is Faraday law of electromagnetic induction, sensor mainly group One-tenth part is: measure pipe, electrode, magnet exciting coil, iron core and yoke housing.It is main For measuring the conducting liquid in closed conduct and the volume flow in serosity.Including acid, The liquid of the severe corrosive such as alkali, salt.Ratio is required according to this experimental system technical parameter etc. The intelligent electromagnetic flowmeter that in selecting, sincere instrument provides is used tricks as this experimental system Amount effusion meter.

(9) resistance element is surveyed

Resistivity measuring instrument be applied to thermoelectricity, chemical industry chemical fertilizer, metallurgy, environmental protection, pharmacy, biochemistry, The continuous monitoring of resistivity value in the solution such as food and tap water.Resistivity measuring instrument be Simplify function on the basis of ensureing performance, thus be provided with the strongest price advantage. Environmental suitability is strong, clearly indicate, operation and excellent test performance make it easily There is the highest cost performance.This time experimental system is the generation situation of detection hydrate, choosing With resistance measuring instrument as supplemental measurement tool, prepare in still according to institute's measuring resistance reaction Media variations situation.Resistance equipment the most used includes electrode probe, high-frequency ac constant current Source, current/voltage analog input card.

(10) liquidometer

Differential pressure type level gauge is to apply differential pressure gauge or differential pressure transmitter to carry out measuring transducer liquid level, It is to apply to obtain widest a kind of level gauging instrument at present.Differential pressure type level gauge is to utilize When in container, liquid level changes, fluid column the principle of the static pressure produced also respective change and work ,

(11) valve

For meeting the requirement that experimental provision runs, experimental provision is provided with corresponding 25 on loop Deck valve door, for realizing the efficient operation of experiment, Valve controlling mode all uses electronic control System,

(12) pipe design

Circuit system pipe design result is: loop pipeline section uses 0Cr18Ni10Ti, and pipeline is advised Lattice are Φ 10 × 1.

Arrangement principle

Whole device should be arranged in given areal extent；

The equipment having vibration should be located in ground base as far as possible, it is impossible to is arranged in the vibration on ground Equipment, it is necessary to design special fixed support；

Water tank arranges that height is higher than pump intake, to meet the requirement of plunger displacement pump entrance net positive suction head；

Equipment and pipe arrangement consider the convenience keeped in repair from now on He more change the outfit, tear open as far as possible；

Pipeline arranges and should meet requirement of experiment, uses the valve that resistance is less as far as possible, to the greatest extent may be used Elbow can be reduced in ground, reduce flow resistance；

Stress requirement to be met arranged by pipeline, makes every effort to neat appearance, and small-bore pipeline uses weldering The mode of connecing connects, and large diameter pipeline uses bite type Flange joint, reduces heavy caliber weld seam as far as possible Quantity, in the range of weld seam should be avoided staying support as far as possible, in order to operation.Equipment, pipe fitting and valve The installation of door to consider that maintenance is convenient, must not hinder mutually；

Point for measuring temperature and pressure tap should be arranged in that working media flow is in stable condition, heat convection is good Good position.Pressure tap at least should leave the straight length conduct of 10 times of pipe diameters on pipeline Stable section.

Valve

Type Selection Principle

The type selecting of valve is followed considered below:

The valve body material of valve all selects rustless steel；

Regulation valve all uses electric control valve open in usual；

Its blow pressure of relief valve is not affected by floss hole back pressure.

Arrangement principle

Valve should be arranged in provide easy access to, convenient to operate, maintenance place.

Valve is preferably arranged in the position that piping displacement amount is little；

When the open rod type valve that valve is horizontally mounted is opened, valve rod must not hinder current；

When valve is adjacently positioned, the clear distance between handwheel is no less than 100mm；

On horizontal pipe, the valve rod direction of valve should be vertically upward.

Process system INSULATION DESIGN

According to GB 50264-1997's " Code for design of heat insulation engineering of industrial equipment and pipe lines " Regulation, for reducing the heat exchange of experimental provision equipment, pipeline and adnexa thereof and surrounding, Need to take certain cladding measure at its outer surface.

Reduce environment in experiment experimental facilities and pipeline are heated, experiment is better achieved to pipe Road and the thermoregulator requirement of flow media.

Equipment or the pipeline that should not be incubated specifically include that

Require heat radiation or necessary exposed equipment and pipeline；

Require to find in time equipment and the pipe flange of leakage；

Must often monitor or measure, to prevent the position being damaged；

In process system, aerofluxus, emptying etc. need not equipment or the pipeline of insulation.

It is last it is noted that above example is only in order to illustrate technical side of the present utility model Case, is not intended to limit；Although this utility model having been carried out detailed with reference to previous embodiment Illustrate, it will be understood by those within the art that: it still can be to foregoing embodiments Described technical scheme is modified, or wherein portion of techniques feature is carried out equivalent； And these amendments or replacement, do not make the essence of appropriate technical solution depart from this utility model each The spirit and scope of embodiment technical scheme.

Claims (10)

1. a gas hydrates Fast back-projection algorithm device, it is characterised in that including: supply air line, liquid feeding pipeline, agitating device, data acquisition control system；

Described supply air line is for being delivered to the gas in gas cylinder (118) in reactor (115)；This pipeline is connected by the gas access a of pipeline with reactor (115) bottom by the outlet of gas cylinder (118)；

Described liquid feeding pipeline in being delivered to reactor (115) by the water of water tank (113)；This liquid feeding pipeline is connected with reactor liquid phase entrance c by pipeline by the outlet of water tank (113), is provided with plunger displacement pump (112) on this connecting pipeline；

Described agitating device is for be provided with agitator (119) in described reactor (115), and the stirring of this agitator (119) is pulverized oar and used the blade form that advances, and is provided with broken tooth cone below blade；

Described data acquisition control system includes computer, and be connected with computer resistivity measurement point C, pressure measurement point P, temperature measuring point T, level gauging point L, single-phase, multiphase flowmeter measurement point F, parameter identifier point M.

Gas hydrates Fast back-projection algorithm device the most according to claim 1, it is characterised in that also include spray equipment；

This spray equipment includes: the top of described reactor (115) is provided with spray thrower (1151), this spray thrower (1151) is connected with reactor liquid phase entrance c by pipeline, is provided with liquid circulation pump (114) on this connecting pipeline.

Gas hydrates Fast back-projection algorithm device the most according to claim 1, it is characterised in that also include bubbling device；

This bubbling device includes the bubbler (122) being arranged on reactor (115) bottom.

Gas hydrates Fast back-projection algorithm device the most according to claim 1, it is characterized in that, described supply air line includes the gas bypassing regulation closed circuit for unreacted gas in reactor (115) being pumped out and circulated the gas access a pumping into reactor (115) bottom by gas circulator (111) from the gas outlet b on reactor top.

Gas hydrates Fast back-projection algorithm device the most according to claim 4, it is characterized in that, described gas bypassing regulation closed circuit is provided with the road gas shield closed circuit for protective gas circulating pump, this gas shield closed circuit is constituted by being sequentially connected with lower component: gas circulator (111) exports, second regulation valve (CV-105), 4th pressure indicator (P-104), 4th thermindicator (T-104), 4th regulation valve (CV-109), first gas flowmeter (F-101), second pressure indicator (P-102), second thermindicator (T-102), gas circulator (111) entrance.

Gas hydrates Fast back-projection algorithm device the most according to claim 2, it is characterized in that, described spray equipment includes that a road is for protecting the protection closed circuit of liquid circulation pump (114), this protection closed circuit is specifically constituted by being sequentially connected with lower component: liquid circulation pump 114 exports, 7th regulation valve (CV-208), 7th thermindicator (T-202), 17th pressure indicator (P-202), first liquid effusion meter (F-201), 9th regulation valve (CV-207), 6th thermindicator (T-201), 16th pressure indicator (P-201), liquid circulation pump (114) entrance.

Gas hydrates Fast back-projection algorithm device the most according to claim 1, it is characterised in that include being in voltage stabilizing pipeline that is constant or that be under required pressure condition for the pressure making reactor (115) internal；This stabilivolt route liquid phase pipeline and gas phase pipeline 2 part are constituted；

Wherein, liquid phase pipeline is sequentially connected with by pipeline to be constituted by water tank (113), plunger displacement pump (112), the liquid phase entrance d of voltage stabilizing surge tank (117) bottom, liquid-phase outlet h, second row water valve (V-203)；

Described gas phase pipeline is sequentially connected with by pipeline to be constituted by the outlet of gas cylinder (118), the gas phase entrance f on voltage stabilizing surge tank (117) top, the gaseous phase outlet g of voltage stabilizing surge tank (117), the gas access a of reactor (115) bottom.

Gas hydrates Fast back-projection algorithm device the most according to claim 7, it is characterised in that be also associated with vacuum pump (116) on described voltage stabilizing surge tank (117).

Gas hydrates Fast back-projection algorithm device the most according to claim 7, it is characterized in that, described voltage stabilizing surge tank (117) is equipped with the 3rd thermindicator (T-103), 3rd pressure indicator (P-103), first fluid level indicator (L-101), and second relief valve (V-107), voltage stabilizing surge tank (117) periphery is provided with jacket heat-exchanger, guiding gutter it is provided with inside heat exchanger, it is adjusted controlling to the temperature in reactor by the first inlet valve (V-403) and the first flowing water Valve (V-404) by voltage stabilizing surge tank refrigeration unit (120).

Gas hydrates Fast back-projection algorithm device the most according to claim 1, it is characterized in that, described reactor (115) is provided with the 5th pressure indicator (P-105), the 5th thermindicator (T-105), the second fluid level indicator (L-102) and resistivity indicator (C-101)；

Reactor (115) periphery is provided with jacket heat-exchanger, it is provided with guiding gutter inside heat exchanger, reactor refrigeration unit (123) is adjusted controlling to the temperature in reactor (115) by the second inlet valve (V-401) and flowing water Valve (V-402).