CN1239229C

CN1239229C - Gas-liquid separating method separating apparatus and vehicle installed with said separator

Info

Publication number: CN1239229C
Application number: CN 200410003441
Authority: CN
Inventors: 刘进立; 马靖喧; 曹广军; 傅苏红; 方保华; 张宏旺
Original assignee: Oil Research Institute of General Logistic Department of PLA
Current assignee: Oil Research Institute of General Logistic Department of PLA
Priority date: 2004-03-11
Filing date: 2004-03-11
Publication date: 2006-02-01
Anticipated expiration: 2024-03-11
Also published as: CN1559650A

Abstract

The present invention provides a gas-liquid separation method, a separator and a vehicle which is provided with the separator. The separator comprises a cyclone separator which is used for the primary cyclone separation, a steady flow separating device, a secondary cyclone separator and a coalescer, wherein the steady flow separating device is used for respectively conveying gas and liquid after the primary cyclone separation into a steady flow tank, gravity settling of liquid drops in the gas is sufficiently carried out, the gas-liquid layering and the liquid level control of the gas are carried out, and gas and liquid are respectively and smoothly discharged; the secondary cyclone separator realizes outward rotation gas flow separation and internal rotation gas flow separation of the gas flow which is exhausted in the steady flow separation process and contains liquid drops, and purified gas is exhausted from the middle of the upper part; the coalescer is used for the multi-layer filtration coalescing of gas which is exhausted in the secondary cyclone separation process, liquid drops in mist gas is coalesced into large liquid drops which are discharged from the bottom, and filtered pure gas is exhausted from the upper part. The separation method and the separator can be used for effectively separating gas-liquid mixtures with large gas-liquid ratio variation range, the integration of the entire device is good, and the device has optimum and reasonable structure.

Description

A kind of gas-liquid separating method, separator and the vehicle of this separator is installed

Technical field

The present invention relates to a kind of separation method and equipment, especially relate to a kind of gas-liquid separating method and gas-liquid separation equipment.

Background technology

At present, in the gas-liquid separation equipment of chemical industry, petrochemical industry, relate generally to following a few class gas-liquid separating method:

The one, gravity separator mainly is to rely on gravity to carry out sedimentation separation, and the gas-liquid flow is low more, container dimensional is big more, and gas-liquid separation efficient is high more, but this method often not only needs bulk container, and need enough sedimentation times, therefore seldom be used to remove the following drop of 300 μ m.

The 2nd, adopt whizzer or cyclone separator, be several times as much as the centrifugal force of gravity by generation, generally be used to remove the above drop of 100 μ m, but the gas impulsion power after the wherethrough reason is very big, the structural design and the reliability requirement of aftertreatment device often had specific (special) requirements.

The 3rd, adopt the mist of oil arrester, the filter pad that utilizes fiber that its inside is equipped with usually or filter screen to make, flow velocity is very low, and container is big, and it can remove the fine drop of 1-5 μ m.

The 4th, adopt the gas-liquid coalescer, utilize it to have the feature of mist of oil arrester and blade separator, this coalescer that separates efficiently can make oil gas pass through the filter core that the strong microfibre of its outer cohesiveness is formed usually, and this filter core can be caught the drop of 0.1 μ m.

The gas-liquid separator of extensive use at present all has reasonable effect, but separates for the bigger gas-liquid mixture of gas liquid ratio excursion handling under the metastable situation of mixture gas liquid ratio, does not also solve well.

In addition; existing equipment is divided into two kinds of mechanical type and electromagnetic types as the fluid level control device that uses in the gas-liquid separator; for the mechanical fluid level control device of the general employing of flammable and combustible liquids; and mechanical liquid automatic control device adopts the float-controlled valve structure more; import and export by the direct ON/OFF liquid of ball float road; in pressure vessel because pressure changes and the influence of structural design; this structure appears at the phenomenon that fits badly, do not open when opening when closing through regular meeting, can't control break-make automatically at different operating modes effectively.

In addition, existing equipment often physical dimension is bigger, can not integrated effectively overall separation equipment, and cause mobility relatively poor, be not easy to carry out the move mode operation.

Summary of the invention

Technical problem to be solved by this invention provides a kind of comprehensive gas-liquid separating method and equipment, and it can effectively separate the bigger gas-liquid mixture of gas liquid ratio excursion, and the integral device integration is good, structure optimization, reasonable.

In order to realize said method, the invention provides a kind of gas-liquid separating method, its characteristics are, comprise the steps:

Step 1 is provided with one-level cyclonic separation process, is used for gas-liquid mixture fluid is tangentially entered tank body and rotation at a high speed in the chamber, and liquid is discharged from outlet at bottom, and gas and the droplet of carrying secretly thereof are then discharged from the top central exit;

Step 2, one current stabilization separation process is set, be used for and will be imported respectively in the current stabilization jar by the gas-liquid after the described one-level cyclonic separation, droplets entrained in the gas is fully carried out gravitational settling, the further layering of gas-liquid is after gas and liquid are discharged in liquid level control respectively reposefully;

Step 3 is provided with secondary rotational flow separation process, and the air-flow that contains drop that is used for being discharged by described current stabilization separation process successively carries out outward turning flow separation and inward turning flow separation, and purified gas is discharged in the middle of top.

Step 4 is provided with the coalescence filtration process, and it is coalescent to be used for being undertaken by the gas that described secondary rotational flow separation process is discharged multiple filtration, and the gas after will filtering discharges, and simultaneously the fog-like liquid in the gas is agglomerated into the drop discharge.

Above-mentioned gas-liquid separating method, its characteristics are, before carrying out step 1, also comprise the step of carrying out the gas-liquid current limliting, and the control area of passage makes the peak value of biphase gas and liquid flow be no more than set-point to be used for changing automatically according to front and back end pressure reduction.

Above-mentioned gas-liquid separating method, its characteristics are, before carrying out step 1, also comprise the step of carrying out primary filter, are used for removing gas-liquid mixture impurity.

Above-mentioned gas-liquid separating method, its characteristics are, after carrying out step 4, clean gas are directly entered atmosphere through spark arrester.

Above-mentioned gas-liquid separating method, its characteristics are that the liquid entrainment amount is less than 5% in the gas that the one-level cyclonic separation goes out; Mist droplet granularity is less than 20 μ m in the isolated gas of current stabilization, and mist droplet granularity is less than 0.1 μ m in the gas that the secondary rotational flow separation goes out.

Above-mentioned gas-liquid separating method, its characteristics are that the employing nothing press dry and relates to the float liquid level control mode by the buoyancy of float and the variation adjusting area of passage of gravitational difference in the current stabilization separation process of step 2, thereby controls gas and liquid discharge in the current stabilization jar automatically.

In order to realize above-mentioned purpose better, the present invention also provides a kind of gas-liquid separator, and its characteristics are, comprising:

Primary cyclone is used for gas-liquid mixture fluid is tangentially entered tank body and rotation at a high speed in the tank body chamber, and liquid is discharged from the pot bottom outlet, and gas and the droplet of carrying secretly thereof are then discharged from the cover central exit;

The current stabilization separator, the gas-liquid that is used for described primary cyclone is separated is by in the gas-liquid import input current stabilization jar, in described current stabilization jar to the gas-liquid layering, make in the gas droplets entrained fully carry out gravitational settling, and gas and liquid are discharged respectively through the fluid level control valve of installing at the gas liquid outlet place of current stabilization jar;

The secondary cyclone separator, rotational gas flow outside being used for to form the cylindrical shell upper inlet is tangentially imported tube along barrel in by the air-flow that contains drop that described current stabilization separator is discharged, and utilize the cone of cylindrical shell bottom to form the inward turning air-flow, revolve the discharging tube that liquid behind the branch enters cone base, the gas that revolves behind the branch is discharged from cylindrical shell top intermediate exhaust pipe;

Coalescing filter, be used for and pass through inducer, filter core section and outlet section successively by the gas that described secondary cyclone separator is discharged, described filter core section is provided with the coalescent filter core of multilayer, droplet in the gas radially pools big drop by the multilayer dielectricity hole and discharges through the hydrops groove, and the clean gas after the filtration is discharged through outlet section.

Above-mentioned gas-liquid separator, its characteristics are, also are provided with a current limiter outside the import of described one-level stream wind separator.

Above-mentioned gas-liquid separator, its characteristics are that the fluid level control valve in the described current stabilization separator does not relate to the float liquid level control valve for having to press dry.

Above-mentioned gas-liquid separator, its characteristics are that described fluid level control valve further comprises: float, valve rod, seal cover, outer cover bucket, inner cover bucket, an isolation bucket chamber; Described valve rod is a hollow tube, and the blind end of described valve rod is connected with described float, has the sidewall through hole on the sidewall of the openend of described valve rod; Described inner cover bucket and described seal cover form inner cover bucket chamber, form the interlayer chamber between the outer wall of the inwall of described outer cover bucket and described inner cover bucket, form between the base plate of the base plate of described outer cover bucket and described inner cover bucket and isolate the bucket chamber, described isolation bucket chamber communicates with described interlayer chamber, the base plate of described outer cover bucket and inner cover bucket is provided with coaxial aperture, described valve rod passes described coaxial aperture and is arranged in described isolation bucket chamber and the inner cover bucket chamber, and described sidewall through hole moves with described valve rod and realizes described conducting/partition of isolating between bucket chamber and the inner cover bucket chamber; Described interlayer chamber links to each other with the exhaust/discharge opeing outlet of described tank body by the passage on the described seal cover, and described outer cover bucket is provided with closed channel with described inner cover bucket and forms the inlet that is communicated with described inner cover bucket chamber.

Above-mentioned gas-liquid separator, its characteristics be, at the axis hole of described outer cover barrel soleplate or/and also offer the ring-shaped groove of placing sealing ring on the coaxial aperture of described inner cover barrel soleplate.

Above-mentioned gas-liquid separator, its characteristics are, also comprise a sealing ring, and described sealing ring is arranged in the ring-shaped groove on the lateral wall of described valve rod middle part.

Above-mentioned gas-liquid separator, its characteristics are, also comprise a spacing collar, and described spacing collar is arranged on the described valve rod blind end lateral wall.

Above-mentioned gas-liquid separator, its characteristics are that described tank body is horizontal tank container, and described fluid level control valve is two, and are separately positioned on the gas vent and liquid outlet of described horizontal tank container.

Above-mentioned gas-liquid separator, its characteristics are, described valve rod is connected with described float by hinge member successively, described hinge member is arranged on the centre of described connecting rod, one end of described connecting rod is hinged on the fixed bar, the other end of described connecting rod connects an end of described float, and the other end of described float is installed on the fixed guide, and described fixed bar and fixed guide are installed on the described inner tank wall.

Above-mentioned gas-liquid separator, its characteristics be, is connected to a spark arrester at the blast pipe of described coalescing filter after also.

Above-mentioned gas-liquid separator, its characteristics are that described secondary cyclone separator is a plurality of cyclone separators that are set up in parallel.

Above-mentioned gas-liquid separator is characterized in that, the discharging tube of described secondary cyclone separator is connected to a hydrops jar.

In addition, a further object of the invention provides a kind of vehicle with the integration gas-liquid separator, and it can carry out mobile operating according to different processing objects.

For this reason, the invention provides a kind of vehicle that gas-liquid separator is installed, its characteristics are, comprise vehicle frame and the gas-liquid separator that is installed on the vehicle frame, and described gas-liquid separator comprises again:

Coalescing filter, be used for and pass through inducer, filter core section and outlet section successively by the gas that described secondary cyclone separator is discharged, described filter core section is provided with the filter core of multiple layer filter media, droplet in the gas radially pools big drop by the multilayer dielectricity hole and discharges through the hydrops groove, and the clean gas after the filtration is discharged through outlet section.

Above-mentioned vehicle, its characteristics are that described vehicle frame is to have the vehicle frame of driving mechanism voluntarily, perhaps are the traction vehicle frame.

This method has adopted separation technology such as cyclonic separation, Gravity Separation, coarse separation, biphase gas and liquid flow is successfully separated, and can the many gas of treatment fluid few, the liquid weak breath is many and the Protean operating mode of liquid measure tolerance.

This gas-liquid separator has adopted the tertiary treatment device to carry out the phase transition process of the gaseous mixture that separation of air and oil forms, and liquid droplet size arrive several millimeters greatly, little to micron, the gas liquid ratio of gas-liquid mixture can from 0 to 100% in separation process.

Description of drawings

Fig. 1 is the workflow diagram of a kind of integrated form gas-liquid separator of disclosing of the present invention;

Fig. 2 is the schematic diagram of a kind of gas-liquid separator of disclosing of the present invention;

Fig. 3 is the structural representation of current stabilization separator in the gas-liquid separator shown in the present;

Fig. 3 a, Fig. 3 b and Fig. 3 c are the gas-liquid control valve structural representations that the current stabilization separator uses among Fig. 3;

Fig. 4 is the structural representation of coalescer in the disclosed gas-liquid separator;

Fig. 5 is disclosed a kind of vehicle frame schematic diagram that gas-liquid separator is installed.

The specific embodiment

In Fig. 1, gas-liquid separating method shown in the present comprises the steps:

Just treatment step utilizes spherical pig receiving system (as shown in Figure 1, three-position four-way valve 7) to be connected with external pending fluid-mixing discharge pipe; And utilize initial filtrator to carry out coarse filtration and remove impurity in the fluid-mixing, again with this mist by gas-liquid current limiter 6, the speed of this fluid-mixing is steady substantially under the effect of this gas-liquid current limiter 6.The effect of this gas-liquid current limiter 6 is that the peak velocity that limits the unstable biphase gas and liquid flow that enters separator is no more than set-point, it adopts the differential pressure current-limiting mode, be that pipeline gas-liquid flow is when increasing suddenly, two ends pressure reduction also increases simultaneously, the internal piston motion, reduce overflow section, thereby realize the current limliting purpose.At this basically, further begin the gas-liquid separation processing procedure.

Step 1 is carried out one-level cyclonic separation process with pending fluid-mixing through primary cyclone 2, and oil gas is separated, and liquid flows out from outlet at bottom, and the gas of carrying small amount of liquid secretly enters current stabilization separator 1 through last general export.In this step, the liquid entrainment amount in its isolated gas is less than 5%, and not gas-entrained in the liquid.

Step 2, to enter current stabilization separator 1 from upper inlet by one-level cyclonic separation process gas separated, this current stabilization separator 1 is a horizontal vessel jar, be divided into gas-liquid entrance region and gas-liquid outlet area, gas-liquid after the crude separation of one-level cyclonic separation process enters in current stabilization separator such as the current stabilization tank body respectively from the upper and lower, carry out Gravity Separation, be convenient to the control of gas-liquid layering and liquid level.Because this current stabilization tank body volume is bigger, the gas-liquid separation interface is a liquid surface, mobility is lower, two-phase interface is steady relatively, the big drop of carrying secretly in the gas is at this abundant gravitational settling, gas separated enters into secondary rotational flow separation process reposefully through fluid level control valve, and liquid then directly enters the terminal container.

In this enforcement, this fluid level control valve adopts not have to press dry and relates to two float liquid level control valves, is used for automatically controlling gas and liquid and discharges, and the on/off of this fluid level control valve is the influence of receptor inside and outside differential pressure not, quality and buoyancy with coupling are realized reliable, mechanical movable sealing.By its float linkage, can realize that the buoyancy of float and the variation of gravitational difference regulate area of passage automatically, reach the purpose of regulating flow.Along with entering of gas-liquid mixture, liquid level rises, and float relies on the buoyancy function come-up, and the liquid way outlet is opened greatly gradually, and the gas circuit outlet turns down gradually; Otherwise when float constantly descended along with liquid level, the gas circuit outlet was opened gradually, and the liquid road is then closed gradually, and when liquid level dropped to certain position, float then cut out the liquid road fully, opens gas circuit, finished a gas-liquid control automatically.

Step 3, secondary rotational flow separation process is used for removing the droplet of gas granularity greater than 20 μ m.The drop air-flow that contains of being discharged by the current stabilization separation process enters cyclone separator 3 through air inlet pipe, and this air-flow will become circular motion by rectilinear motion.The overwhelming majority of swirling eddy from the downward twist cone motion of cylinder, is commonly referred to " outer rotational gas flow " along wall.The gas that contains drop produces centrifugal force in rotary course, the drop that severe is big gets rid of to wall, and drop is in case contact with wall, just loses inertia force and leans on the momentum of entrance velocity and downward gravity along the downward turn of wall, enters discharging tube.Rotate downward outer rotational gas flow when arriving cone, conical contraction is tired of towards the cyclone center by disturbing.According to " spin moment " constant principle, its tangential velocity improves constantly.When air-flow arrives a certain position of cone one end, promptly with same direction from the cyclone middle part from bottom to top counter-rotating and on, continue spiralling, i.e. " interior rotational gas flow ".Final purification gas blast pipe is discharged outside the cyclone.

Step 4, agglomeration process is used to remove the mist of oil of granularity greater than 0.1 μ m.To enter coalescer 5 by the gas that secondary rotational flow separation process purifies handles.Short distance gravitational settling through inlet space enters coalescent filter core.Efficient coalescent filter core has multiple layer filter media, and its aperture successively increases progressively.In order to realize the filter effect of different accuracy, can select corresponding filter core for use.When fluid flow through filter medium, droplet pooled big drop gradually radially by the medium hole, and big drop falls into container bottom hydrops groove under the gravity effect, and pure gas enters container chamber and discharge through outlet.

Step 5 through spark arrester 8, directly enters atmosphere with pure gas.

In Fig. 1 and Fig. 2, gas-liquid separator shown in the present comprises: three-position four-way valve 7, current limiter 6, primary cyclone 2, current stabilization separator 1, second cyclone 3, voltage limiter 4, coalescer 5, spark arrester 8, hydrops jar 9 and a plurality of Pressure gauge, two position three-way valve and check valve.Wherein, this three-position four-way valve 7 is leaded up to current limiter 6 and is connected to primary cyclone 2.The blast pipe of this primary cyclone 2 is connected to current stabilization separator 1 gas access, the discharging tube of this primary cyclone 2 is connected to current stabilization separator 1 liquid inlet, the gas vent of this current stabilization separator 1 is connected to second cyclone 3, this current stabilization separator 1 is discharged liquid by liquid outlet, the gas vent of this second cyclone 3 is connected to coalescer 5 by voltage limiter 4, the liquid outlet of this second cyclone 3 is connected to a two position three-way valve, this two position three-way valve one road is connected to hydrops jar 9, and another road is connected to the gas vent of this current stabilization separator 1.The clean gas outlet of coalescer 5 enters atmosphere by spark arrester 8, and coalescer 5 is discharged liquid through liquid outlet.Outlet, primary cyclone, current stabilization separator 1 and coalescer 5 etc. at this three-position four-way valve 7 locate to be provided with Pressure gauge.

In Fig. 3, the present invention has disclosed a kind of constant-current stabilizer, wherein, this constant-current stabilizer adopts a horizontal vessel jar, be divided into gas-liquid entrance region and gas-liquid outlet area, at the gas-liquid entrance region, gas/liquid import 30 places are provided with protecting against shock water conservancy diversion plate washer 31, are provided with in the gas liquid outlet district not have to press dry to relate to two float liquid level control valves.This pair float liquid level control valve structure is referring to Fig. 3 a, Fig. 3 b and Fig. 3 c.At Fig. 3, Fig. 3 a, a kind of two float-type fluid level control valves that are used for this constant-current stabilizer have been disclosed among Fig. 3 b and Fig. 3 c, it mainly comprises gas/liquid import 30, protecting against shock water conservancy diversion plate washer 31, lid 60, seal cover 70, seal cover sealing ring 80, valve rod 90, sidewall through hole 91, outer cover bucket 100, inner cover bucket 110, isolate bucket 112, interlayer chamber 100a, inner cover bucket chamber 110b, hinge member 50, float 120, O type circle 92 and connecting rod 40, wherein, the centre of lid 60 is provided with the outlet 61 (the perhaps outlet 61 ' of liquid) of gas, form a space 60a between lid 60 and the seal cover 70, also be provided with seal cover sealing ring 80 between lid 60 and the seal cover 70, a plurality of passages 71 on the seal cover 70 are communicated with the outlet 61 of gas by space 60a; This valve rod 90 is a hollow tube, and the blind end of valve rod 90 is connected with float 120 by hinge member 50, has the sidewall through hole 91 of 8 rectangles on the sidewall of the top of valve rod 90 (opening); Sealing forms an inner cover bucket chamber 110b between inner cover bucket 110 and the seal cover 70, sealing forms interlayer chamber 100a between the outer wall of the inwall of outer cover bucket 100 and inner cover bucket 110, sealing forms and isolates bucket chamber 112 between outer cover barrel soleplate 101 and the inner cover barrel soleplate 111, isolating bucket chamber 112 communicates with interlayer chamber 100a by the rectangular opening 112a on its sidewall, outer cover barrel soleplate 101 is provided with axis hole 101a, inner cover barrel soleplate 111 is provided with coaxial aperture 111a, this valve rod 90 passes axis hole 101a and coaxial aperture 111a charging diaphragm in bucket chamber 112 and inner cover bucket chamber 110b, and the sidewall through hole 91 on this valve rod 90 moves to make to isolate between bucket chamber 112 and the inner cover bucket chamber 110 with valve rod 90 realizes conducting/partition; Outer cover bucket 100 is provided with 4 closed channel 110a with inner cover bucket 110 and is communicated with inner cover bucket chamber 110b.

In order to improve sealing, on the axis hole 101a of outer cover barrel soleplate 101, offer a pair of ring-shaped groove 101b and place O-ring seals or rectangular seal, on the coaxial aperture 111a of inner cover barrel soleplate 111, also can offer ring-shaped groove placement O-ring seals certainly sealing further is provided.In addition, O shape spacing collar 92 is set on the blind end lateral wall of valve rod 90.When the sidewall through hole 91 of valve rod 90 moves to inner cover bucket chamber 110b on fully, this inner cover bucket chamber 110b and isolation bucket chamber 112 are isolated (gas that enters inner cover bucket chamber 110b by closed channel 110a can't enter isolation barrel chamber 112 and interlayer chamber 100a by the sidewall through hole 91 of valve rod 90), and this O shape spacing collar 92 moves with valve rod 90 and props up outer cover barrel soleplate 101.

In addition, also have ring-shaped groove, O-ring seals also is set in the ring-shaped groove in the outside at valve rod 90 middle parts.

This hinge member 50 comprises jointed shaft 51 and hinge seat 140 again, have chute 141 on the hinge seat 140, jointed shaft 51 is arranged on the liquid level difference just to guarantee that valve rod 90 moves in vertical direction, also can remedy automatically simultaneously to cause because of the liquid level slight fluctuations in the chute 141.

The connecting rod 40 that between hinge member 50 and float 120, is provided with, one end of this connecting rod 40 is hinged on the fixed bar 130 by jointed shaft 131, the other end of connecting rod 40 is connected to an end of float 120 by CRJ fast connecting joint 123, and the other end of this float 120 also is installed on the fixed guide 125 by slide block 122.Fixed bar 130 and fixed guide 125 are separately fixed on the tank body 10.On tank body 10, install motion that the guide rail 125 of float 120 can control float 120 additional at above-below direction, and can float 120 is fixing in the transportation, reduce vibrations and collides with.Owing to adopt CRJ fast connecting joint 123 between float 120 and the connecting rod 40, can carry out the dismounting combination fast, float ventilation mouth 121 also is installed on float 120.

As can be seen from Figure 3, this fluid level control valve that the top is provided with is used for divided gas flow, and this fluid level control valve that the below is provided with is used for separating liquid.But because valve rod 90 freely-movable under the drive of float 120 and connecting rod 40, between the coaxial aperture 111a of the axis hole 101a of valve rod 90 and outer cover barrel soleplate 101 and inner cover barrel soleplate 111, often keep certain interval for this reason.For guaranteeing that liquid road or gas circuit close fully, adopted two O RunddichtringO sealing structures to live in to state the gap.Like this, gas circuit or liquid road runner can only be the cavities that enters valve rod 90 through inner cover bucket chamber 110a, rectangular side wall through hole 91 through valve rod 90 sidewalls enters an isolation bucket chamber 112, enters the interlayer chamber 100a of outer cover bucket 100 and inner cover bucket 110, flows out through gas circuit or liquid way outlet again.Even gas is carried a spot of drop secretly, this flow passage structure can reduce the possibility that liquid enters the gas circuit outlet.

When carrying out operation, float 120 is because the gravity effect is in its extreme lower position, at this moment, below the hydraulic fluid side, the rectangular side wall through hole 91 of valve rod 90 is in fully isolates in the bucket chamber 112, isolate with inner cover bucket chamber 110b, and with inner cover bucket 110 and outer cover bucket 100 between the interlayer chamber 100a that forms can't be communicated with, the outlet 61 ' on liquid road is closed.At this moment, in gas one side, the rectangular side wall through hole 91 on the valve rod 90 is in fully isolates in the bucket chamber 112, is communicated with the cavity runner of interlayer chamber 100a, and the outlet 61 of gas circuit is opened.Gas-liquid mixture enters into by import 30 in the tank body 10 of gas-liquid separator, and gas is discharged from gas vent 61, and liquid accumulates in tank body 10, and this current stabilization separator 1 is in an operating mode of not discharge opeing of exhaust.

Along with accumulating to increase, liquid cause liquid level to raise, float 120 relies on the buoyancy function come-up, in liquid one side, the part of the sidewall through hole 91 of valve rod 90 is in the inner cover bucket chamber 110b, a part is in isolates in the bucket chamber 112, promptly partly be communicated with interlayer chamber 100a, the outlet 61 ' on liquid road partially opens.Meanwhile, in gas one side, sidewall through hole 91 parts of valve rod 90 are in isolates in the bucket chamber 112, and part is in the inner cover bucket chamber 110b, promptly partly is communicated with interlayer chamber 100a, and the outlet 61 of gas circuit partially opens.At this moment, gas is discharged from the outlet 61 of gas, and liquid is discharged from the outlet 61 ' on liquid road, and this current stabilization separator 1 is in the operating mode of not only exhaust but also discharge opeing.

After liquid level was elevated to the precalculated position, the through hole 91 of the valve rod 90 of liquid one side was in when isolating in the bucket chamber 112 fully, and the runner that is communicated with interlayer chamber 100a is communicated with, and the outlet 61 ' on liquid road is opened; The sidewall through hole 91 of the valve rod 90 of gas one side is in the inner cover bucket chamber 110b fully, isolates with isolation bucket chamber 112, and the cavity runner of interlayer chamber 100a can't be communicated with, and the outlet 61 of gas circuit is closed.At this moment, liquid can only be discharged from the outlet 61 ' on liquid road, and this current stabilization separator 1 is in the operating mode of a not exhaust discharge opeing.

This current stabilization separator 1 separating effect is obvious, does not have to press dry to relate to the float-type fluid level control valve and can carry out the automatic switch action safely and reliably, has realized automatic control of liquid level very effectively, has particularly solved the pressure vessel automatic control of liquid level.

In addition, this control valve is the influence of receptor inside and outside differential pressure not, the float bar linkage structure, and quality and buoyancy with coupling, float rely on the difference of buoyancy and gravity to move valve rod, open and close the liquid way outlet and control liquid level automatically.Owing to designed flow passage structure dexterously, can realize a not discharge opeing of exhaust, not only exhaust but also discharge opeing, three kinds of operating modes of a not exhaust discharge opeing again; Between movement parts and static element, adopt reliable O type circle sealing, realize reliable, mechanical movable sealing.

In Fig. 4, disclosed a kind of coalescer structure that the present invention adopts, this coalescer 5 comprises inducer 510, filter core section 520, outlet section 540 3 parts again, contains the efficient coalescent filter core 530 of a plurality of tubulars, hydrops groove 521 and leakage fluid dram 522 in filter core section 520.This coalescent filter core 530 is made up of multiple layer filter media, and the aperture of filter medium successively increases progressively.Through short distance gravitational settling at inducer 510, enter filter core section 520, when fluid flows through filter medium, droplet is radially by the medium hole, pool big drop gradually, big drop falls into container bottom hydrops groove 521 and is discharged by leakage fluid dram 522 under the gravity effect, and pure gas enters container outlet section 540 and discharges through outlet.

In Fig. 5, the present invention has disclosed a kind of vehicle frame that gas-liquid separator is installed, for having the vehicle frame of driving mechanism voluntarily, perhaps be the traction vehicle frame, it makes this gas-liquid separator have good integration by adopting three-position four-way valve, two position three-way valve and multichannel pipeline, this gas-liquid separator is installed on the mobile vehicle frame, can realizes mobile operating very easily.

The separating effect of this gas-liquid separator is obvious, can handle the gas-liquid mixture of gas liquid ratio from 0-100% effectively, and the gas-liquid way outlet is pure gas and liquid basically.When the separation oil and gas mixture, the gas of gas circuit outlet is in the limit scope.

Foregoing only is preferred embodiment of the present invention, and is all according to main design of the present invention and spiritual modification and the change of carrying out of design, all should belong to the protection domain of claim of the present invention.

Claims

1, a kind of gas-liquid separating method is characterized in that, comprises the steps:

Step 2 is provided with a current stabilization separation process, is used for being imported respectively in the constant-current stabilizer by the gas-liquid after the described one-level cyclonic separation, and droplets entrained in the gas is fully carried out gravitational settling, discharges gas and liquid respectively reposefully through gas-liquid layering and liquid level control;

Step 3 is provided with secondary rotational flow separation process, and the air-flow that contains drop that is used for being discharged by described current stabilization separation process successively carries out outward turning flow separation and inward turning flow separation, and purified gas is discharged in the middle of top;

Step 4 is provided with the coalescence filtration process, and it is coalescent to be used for being undertaken by the gas that described secondary rotational flow separation process is discharged multiple filtration, and the gas after will filtering discharges, and simultaneously fog-like liquid is agglomerated into the drop discharge.

2, according to the described gas-liquid separating method of claim 1, it is characterized in that, before carrying out step 1, also comprise the step of carrying out the gas-liquid current limliting, the control area of passage makes the peak value of biphase gas and liquid flow be no more than set-point to be used for changing automatically according to front and back end pressure reduction.

3, according to the described gas-liquid separating method of claim 1, it is characterized in that, before carrying out step 1, also comprise the step of carrying out primary filter, be used for removing gas-liquid mixture impurity.

4, according to the described gas-liquid separating method of claim 1, it is characterized in that, after carrying out step 4, clean gas is directly entered atmosphere through spark arrester.

According to the described gas-liquid separating method of claim 1, it is characterized in that 5, described one-level cyclonic separation process is used for divided gas flow liquid entrainment amount greater than 5% gas-liquid mixture fluid; Described secondary rotational flow separation process is used for the droplet of divided gas flow granularity greater than 20 μ m, and described coalescence filtration process is used to remove granularity greater than 0.1 μ m mist of oil.

6, according to the described gas-liquid separating method of claim 1, it is characterized in that, the employing nothing press dry and relates to the float liquid level control mode by the buoyancy of float and the variation adjusting area of passage of gravitational difference in the current stabilization separation process of step 2, thereby controls gas and liquid discharge in the constant-current stabilizer automatically.

7, a kind of gas-liquid separator is characterized in that, comprising:

Coalescing filter, be used for and pass through inducer, filter core section and outlet section successively by the gas that described secondary cyclone separator is discharged, described filter core section is provided with the filter core of multilayer dielectricity, droplet in the gas radially pools big drop by the multilayer dielectricity hole and discharges through the hydrops groove, and the clean gas after the filtration is discharged through outlet section.

8, gas-liquid separator according to claim 7 is characterized in that, also is provided with a current limiter in described primary cyclone import department.

9, gas-liquid separator according to claim 7 is characterized in that, the fluid level control valve in the described current stabilization separator does not relate to the float liquid level control valve for having to press dry.

According to the described gas-liquid separator of claim 7, it is characterized in that 10, described fluid level control valve further comprises: float, valve rod, seal cover, outer cover bucket, inner cover bucket, an isolation bucket chamber; Described valve rod is a hollow tube, and the blind end of described valve rod is connected with described float, has the sidewall through hole on the sidewall of the openend of described valve rod; Described inner cover bucket and described seal cover form inner cover bucket chamber, form the interlayer chamber between the outer wall of the inwall of described outer cover bucket and described inner cover bucket, form between the base plate of the base plate of described outer cover bucket and described inner cover bucket and isolate the bucket chamber, described isolation bucket chamber communicates with described interlayer chamber, the base plate of described outer cover bucket and inner cover bucket is provided with coaxial aperture, described valve rod passes described coaxial aperture and is arranged in described isolation bucket chamber and the inner cover bucket chamber, and described sidewall through hole moves with described valve rod and realizes described conducting/partition of isolating between bucket chamber and the inner cover bucket chamber; Described interlayer chamber links to each other with the exhaust/discharge opeing outlet of described tank body by the passage on the described seal cover, and described outer cover bucket is provided with closed channel with described inner cover bucket and forms the inlet that is communicated with described inner cover bucket chamber.

11, according to the described gas-liquid separator of claim 10, it is characterized in that, at the axis hole of described outer cover barrel soleplate or/and also offer the ring-shaped groove of placing sealing ring on the coaxial aperture of described inner cover barrel soleplate; Also be provided with sealing ring in the ring-shaped groove on the lateral wall of described valve rod middle part.

12, according to claim 10 or 11 described gas-liquid separators, it is characterized in that, also comprise a spacing collar, described spacing collar is arranged on the described valve rod blind end lateral wall.

According to claim 10 or 11 described gas-liquid separators, it is characterized in that 13, described tank body is horizontal tank container, described fluid level control valve is two, and is separately positioned on the gas vent and liquid outlet of described horizontal tank container.

14, according to the described gas-liquid separator of claim 13, it is characterized in that, described valve rod is connected with described float by hinge member successively, described hinge member is arranged on the centre of described connecting rod, one end of described connecting rod is hinged on the fixed bar, the other end of described connecting rod connects an end of described float, and the other end of described float can move along a fixed guide, and described fixed bar and fixed guide are installed on the described inner tank wall.

15, gas-liquid separator according to claim 7 is characterized in that, is connected to a spark arrester at the blast pipe of described coalescing filter after also.

16, gas-liquid separator according to claim 7 is characterized in that, described secondary cyclone separator is a plurality of cyclone separators that are set up in parallel.

17, a kind of vehicle that gas-liquid separator is installed comprises vehicle frame and the gas-liquid separator that is installed on the vehicle frame, it is characterized in that described gas-liquid separator comprises again:

18, vehicle according to claim 17 is characterized in that, described vehicle frame is to have the vehicle frame of driving mechanism voluntarily, perhaps is the traction vehicle frame.