A kind of self-powering type gas-liquid two-phase fluid level control valve
Technical field
The utility model relates to a kind of fluid level control valve, particularly relates to a kind of self-powering type gas-liquid two-phase fluid level control valve.
Background technique
At present, in oilfield surface engineering process of construction, according to field working conditions, often use gas-liquid separation, carry out gas-liquid metering respectively by gas flowmeter, mass flowmenter.After metering, gas, liquid are mixed into oil-gas mixing conveying system.The utility model solves in gas-liquid separation, mixed process exactly, ensures liquid level, thus ensure that gas-liquid separation.
In traditional self-powering type level controling mechanism, when bearing requirements is higher, often occur ball float wall thickness, ball float is overweight, and buoyancy is not enough; Wall thickness is little, and buoyancy meets the demands, but the contradiction that ball float bearing capacity is inadequate.
Summary of the invention
The utility model completes to solve deficiency of the prior art, and the purpose of this utility model is to provide that a kind of structure is simple, when solving bearing requirements height, ball float is overweight, buoyancy is not enough; Although wall thickness is little, buoyancy meets the demands, the contradiction that ball float bearing capacity is inadequate, ensure liquid level, ensure that gas-liquid separation also reliably, accurately realizes the self-powering type gas-liquid two-phase fluid level control valve of gas-liquid two-phase separate measurement.
A kind of self-powering type gas-liquid two-phase fluid level control valve of the present utility model, comprise gas-liquid cylinder, valve body, valve rod, spool, floating drum, air valve seat and liquid valve seat, the described floating drum that can fluctuate is positioned at the described gas-liquid cylinder of sealing, described valve rod is longitudinally through described floating drum and be fixed in described floating drum, bottom and the described spool of described valve rod are fixed, described gas-liquid cylinder and described valve body are fixed, described valve body is provided with gas-liquid mixed outlet, described air valve seat and described liquid valve seat are arranged at the upper discord lower position in valve body respectively, described spool can be removed formula grafting with described air valve seat with described liquid valve seat or be separated respectively, air chamber is provided with in described valve body, liquid container and gas-liquid mixing chamber, described gas-liquid mixed chamber and described gas-liquid mixed outlet, described gas-liquid mixed chamber can remove formula grafting by spool with air valve seat and liquid valve seat with described air chamber and liquid container and formula of can removing communicates, spool and described air chamber and described liquid container be closed to offset or opening type is communicated with, the upper and lower of described gas-liquid cylinder seals with liquid regions with the gas zones of gas-liquid mixed tank respectively and is communicated with, described valve body upper and lower seals with liquid regions with the gas zones of described gas-liquid mixed tank respectively and is communicated with and is connected to measuring apparatus.
A kind of self-powering type gas-liquid two-phase fluid level control valve of the present utility model can also be:
Described floating drum central authorities are fixed with hollow tubular, described valve rod is through described hollow tubular, described valve stem tip is fixed on the top of described hollow tubular, described valve rod and be provided with balance spring between described hollow tubular and described air valve seat, the apical position of described balance spring is adjustably fixed in described hollow tubular, and bottom and the described air valve seat of described balance spring are fixed.
Described balance spring is fixed in described hollow tubular by adjustable lever and adjusting nut adjustable ground, described adjustable lever top is fixed on described floating drum top, described adjustable lever bottom and described valve stem tip are fixed, described adjustable lever is threaded with described adjusting nut, top and the adjusting nut of described balance spring are fixed, and bottom and the described air valve seat top of described balance spring are fixed.
Described adjustable lever top is fixed on the top of the described hollow tubular of floating drum by locking nut, described hollow tubular passes described floating drum and is welded and fixed with described floating drum.
Described valve body comprises outer valve and inner valve body, described outer valve top and bottom are connected with liquid regions with the gas zones of described gas-liquid mixed tank respectively, described gas-liquid mixed chamber is positioned at described inner valve body, the bottom of described inner valve body and described air valve seat and the top of described liquid valve seat are fixed, described outer valve is fixed with the top of described air valve seat and the bottom of described liquid valve seat respectively, described air chamber is by described outer valve, between inner valve body and described air valve seat, region surrounds, and described liquid container is by described outer valve, between inner valve body and described liquid valve body, region surrounds.
Described outer valve side is provided with gas import, described gas-liquid mixed outlet is positioned at the opposite side of described outer valve, liquid import is provided with bottom described outer valve, described gas import is exported with the gas of the gas zones of described gas-liquid mixed tank and is communicated with by gas feeding duct between the two, and described liquid import is exported with the liquid of the liquid regions of described gas-liquid mixed tank and is communicated with by liquid input tube road between the two.
Described measuring apparatus comprises mass flowmenter and gas flowmeter, described mass flowmenter is arranged on the liquid input tube road between the outlet of described liquid and described liquid import, and described gas flowmeter is arranged on the gas feeding duct between the outlet of described gas and described gas import.
Described spool comprises superposed gas valve core and is positioned at the liquid spool of bottom and is connected the connecting rod of described gas valve core and described liquid spool, described connecting rod is positioned at described gas-liquid mixed chamber, described gas valve core and described air valve seat can remove formula offset or away from and close or open being communicated with of described air chamber and described gas-liquid mixed chamber, described liquid spool and described liquid valve seat can remove formula offset or away from and close or open being communicated with of described liquid container and described gas-liquid mixed chamber.
Described gas-liquid cylinder top stretches out and is provided with gas connection mouth, described gas-liquid cylinder bottom stretches out and is provided with liquid connection mouth, described gas connection mouth is communicated with by the gas position mouth be arranged on described gas-liquid mixed tank with the gas zones of described gas-liquid mixed tank, and described liquid connection mouth is communicated with the liquid level mouth on described gas-liquid mixed tank by arranging with the liquid regions of described gas-liquid mixed tank.
Described gas-liquid cylinder is column-shaped barrel, and described cylinder top is provided with blind flange, and described blind flange and described cylinder top seal fixing.
A kind of self-powering type gas-liquid two-phase fluid level control valve of the present utility model, comprise gas-liquid cylinder, valve body, valve rod, spool, floating drum, air valve seat and liquid valve seat, the described floating drum that can fluctuate is positioned at the described gas-liquid cylinder of sealing, described valve rod is longitudinally through described floating drum and be fixed in described floating drum, bottom and the described spool of described valve rod are fixed, described gas-liquid cylinder and described valve body are fixed, described valve body is provided with gas-liquid mixed outlet, described air valve seat and described liquid valve seat are arranged at the upper discord lower position in valve body respectively, described spool can be removed formula grafting with described air valve seat with described liquid valve seat or be separated respectively, air chamber is provided with in described valve body, liquid container and gas-liquid mixing chamber, described gas-liquid mixed chamber and described gas-liquid mixed outlet, described gas-liquid mixed chamber can remove formula grafting by spool with air valve seat and liquid valve seat with described air chamber and liquid container and formula of can removing communicates, spool and described air chamber and described liquid container be closed to offset or opening type is communicated with, the upper and lower of described gas-liquid cylinder seals with liquid regions with the gas zones of gas-liquid mixed tank respectively and is communicated with, described valve body upper and lower seals with liquid regions with the gas zones of described gas-liquid mixed tank respectively and is communicated with and is connected to measuring apparatus.During such use, when gas-liquid mixed tank liquid level is too high, upper and lower due to gas-liquid cylinder seals with liquid regions with the gas zones of gas-liquid mixed tank respectively and is communicated with, therefore the liquid level in gas-liquid cylinder raises, floating drum in gas-liquid cylinder rises, valve rod fixing is with it driven to rise, the spool fixing with valve rod is driven to rise in the process that valve rod rises, spool rises and then makes the air valve seat being fixed on valve body top reduce gradually with the aperture between spool and being communicated with of final spool and the air chamber in air valve seat grafting and then valve body and gas-liquid mixed chamber, simultaneously spool rises and the liquid valve seat being fixed on valve body lower portion is contacted namely open being communicated with and increasing the aperture between spool and liquid valve seat gradually in spool uphill process of liquid container and gas-liquid mixed chamber with the grafting between spool, the gas inputting valve body like this in gas-liquid mixed tank subtracts flow input, the liquid inputting valve body is then flow increasing input, the liquid level in gas-liquid mixed tank is made to reduce gradually like this.When gas-liquid mixed tank liquid level is too low, upper and lower due to gas-liquid cylinder seals with liquid regions with the gas zones of gas-liquid mixed tank respectively and is communicated with, therefore the liquid level in gas-liquid cylinder reduces, floating drum in gas-liquid cylinder declines, valve rod fixing is with it driven to decline, the spool fixing with valve rod is driven to decline in the process that valve rod declines, spool declines and then makes the air valve seat being fixed on valve body top remove and then open being communicated with and along with spool continues to decline, aperture between the two being increased gradually of air chamber and gas-liquid mixed chamber with spool grafting, simultaneously spool declines and the liquid valve seat being fixed on valve body lower portion is reduced gradually with the aperture between spool and being communicated with of final spool and the liquid container in the grafting of liquid valve seat and then valve body and gas-liquid mixed chamber, the gas inputting valve body like this in gas-liquid mixed tank is flow increasing input, the liquid inputting valve body is then subtract flow input, the liquid level in gas-liquid mixed tank is made to increase gradually like this.Gas-liquid separation can be ensured like this, and liquid level is ensured in mixed process, solve contradiction of the prior art simultaneously, such self-powering type gas-liquid two-phase fluid level control valve may be used for the higher operating mode of system pressure, under the effect that floating drum Area comparison is large and gas-liquid is two-way, anti-pressure ability is high, and floating drum wall thickness can be larger, and valve rod is through being fixed on floating drum in the middle part of floating drum, therefore buoyancy also can meet the demands.The advantage had in terms of existing technologies is: structure is simple, when solving bearing requirements height, ball float is overweight, buoyancy is not enough; Although wall thickness is little, buoyancy meets the demands, the contradiction that ball float bearing capacity is inadequate, ensure liquid level, ensure gas-liquid separation and reliably, accurately realize gas-liquid two-phase separate measurement.
Accompanying drawing explanation
Fig. 1 the utility model self-powering type gas-liquid two-phase fluid level control valve embodiment schematic diagram.
Fig. 2 the utility model self-powering type gas-liquid two-phase fluid level control valve embodiment application schematic diagram.
Figure number explanation
1 ... outer valve 2 ... inner valve body 3 ... liquid valve seat
4 ... liquid spool 5 ... air valve seat 6 ... valve rod
7 ... gas-liquid cylinder 8 ... balance spring 9 ... floating drum
10 ... adjusting nut 11 ... locking nut 12 ... blind flange
13 ... gas valve core 14 ... gas connection mouth 15 ... liquid connection mouth
16 ... gas import 17 ... liquid import 18 ... gas-liquid mixed chamber
19 ... gas-liquid mixed outlet 20 ... connecting rod 21 ... gas position mouth
22 ... liquid level mouth 23 ... gas-liquid mixed tank 24 ... gas exports
25 ... gas-liquid import 26 ... liquid outlet 27 ... gas flowmeter
28 ... mass flowmenter 29 ... hollow tubular 30 ... adjustable lever
Embodiment
Fig. 1 to Fig. 2 below in conjunction with accompanying drawing is described in further detail a kind of self-powering type gas-liquid two-phase fluid level control valve of the present utility model.
A kind of self-powering type gas-liquid two-phase fluid level control valve of the present utility model, please refer to Fig. 1 to Fig. 2, comprise gas-liquid cylinder 7, valve body, valve rod 6, spool, floating drum 9, air valve seat 5 and liquid valve seat 3, the described floating drum 9 that can fluctuate is positioned at the described gas-liquid cylinder 7 of sealing, described valve rod 6 is longitudinally through described floating drum 9 and be fixed in described floating drum 9, bottom and the described spool of described valve rod 6 are fixed, described gas-liquid cylinder 7 is fixed with described valve body, described valve body is provided with gas-liquid mixed outlet 19, described air valve seat 5 and described liquid valve seat 3 are arranged at the upper discord lower position in valve body respectively, described spool can be removed formula grafting with described air valve seat 5 with described liquid valve seat 3 or be separated respectively, air chamber is provided with in described valve body, liquid container and gas-liquid mixing chamber 18, described gas-liquid mixed chamber 18 and described gas-liquid mixed export 19 and are communicated with, described gas-liquid mixed chamber 18 can remove formula grafting by spool with air valve seat 5 and liquid valve seat 3 with described air chamber and liquid container and formula of can removing communicates, spool and described air chamber and described liquid container be closed to offset or opening type is communicated with, the upper and lower of described gas-liquid cylinder 7 seals with liquid regions with the gas zones of gas-liquid mixed tank 23 respectively and is communicated with, described valve body upper and lower seals with liquid regions with the gas zones of described gas-liquid mixed tank 23 respectively and is communicated with and is connected to measuring apparatus.During such use, when gas-liquid mixed tank 23 liquid level is too high, upper and lower due to gas-liquid cylinder 7 seals with liquid regions with the gas zones of gas-liquid mixed tank 23 respectively and is communicated with, therefore the liquid level in gas-liquid cylinder 7 raises, floating drum 9 in gas-liquid cylinder 7 rises, valve rod 6 fixing is with it driven to rise, the spool fixing with valve rod 6 is driven to rise in the process that valve rod 6 rises, spool rises and then makes the air valve seat 5 being fixed on valve body top reduce gradually with the aperture between spool and being communicated with of final spool and the air chamber in air valve seat 5 grafting and then valve body and gas-liquid mixed chamber 18, simultaneously spool rises and the liquid valve seat 3 being fixed on valve body lower portion is contacted namely open being communicated with and increasing the aperture between spool and liquid valve seat 3 gradually in spool uphill process of liquid container and gas-liquid mixed chamber 18 with the grafting between spool, the gas inputting valve body like this in gas-liquid mixed tank 23 subtracts flow input, the liquid inputting valve body is then flow increasing input, the liquid level in gas-liquid mixed tank 23 is made to reduce gradually like this.When gas-liquid mixed tank 23 liquid level is too low, upper and lower due to gas-liquid cylinder 7 seals with liquid regions with the gas zones of gas-liquid mixed tank 23 respectively and is communicated with, therefore the liquid level in gas-liquid cylinder 7 reduces, floating drum 9 in gas-liquid cylinder 7 declines, valve rod 6 fixing is with it driven to decline, the spool fixing with valve rod 6 is driven to decline in the process that valve rod 6 declines, spool declines and then makes the air valve seat 5 being fixed on valve body top remove and then open being communicated with and along with spool continues to decline, aperture between the two being increased gradually of air chamber and gas-liquid mixed chamber 18 with spool grafting, simultaneously spool declines and the liquid valve seat 3 being fixed on valve body lower portion is reduced gradually with the aperture between spool and being communicated with of final spool and the liquid container in liquid valve seat 3 grafting and then valve body and gas-liquid mixed chamber 18, the gas inputting valve body like this in gas-liquid mixed tank 23 is flow increasing input, the liquid inputting valve body is then subtract flow input, the liquid level in gas-liquid mixed tank 23 is made to increase gradually like this.Gas-liquid separation can be ensured like this, and liquid level is ensured in mixed process, solve contradiction of the prior art simultaneously, such self-powering type gas-liquid two-phase fluid level control valve may be used for the higher operating mode of system pressure, under the effect that floating drum 9 Area comparison is large and gas-liquid is two-way, anti-pressure ability is high, and floating drum 9 wall thickness can be larger, and valve rod 6 is through being fixed on floating drum 9 in the middle part of floating drum 9, therefore buoyancy also can meet the demands.The advantage had in terms of existing technologies is: structure is simple, when solving bearing requirements height, ball float is overweight, buoyancy is not enough; Although wall thickness is little, buoyancy meets the demands, the contradiction that ball float bearing capacity is inadequate, ensure liquid level, ensure gas-liquid separation and reliably, accurately realize gas-liquid two-phase separate measurement.
A kind of self-powering type gas-liquid two-phase fluid level control valve of the present utility model, please refer to Fig. 1 to Fig. 2, the basis of previously described technological scheme can also be: described floating drum 9 central authorities are fixed with hollow tubular 29, described valve rod 6 is through described hollow tubular 29, the top of described hollow tubular 29 is fixed on described valve rod 6 top, described valve rod 6 and be provided with balance spring 8 between described hollow tubular 29 and described air valve seat 5, the apical position of described balance spring 8 is adjustably fixed in described hollow tubular 29, and bottom and the described air valve seat 5 of described balance spring 8 are fixed.Like this, in the process that floating drum 9 rises or declines, balance spring 8 can balance the gravity of a part of floating drum 9, makes the maximum buoyancy=2* of floating drum 9 (floating drum 9 Chong Li – balance spring 8 power).Now, spool upwards, the maximum, force that moves down is all the half of the maximum buoyancy of floating drum 9, meets the requirement of switching spool.In addition, the apical position due to balance spring 8 is adjustably fixed in hollow tubular 29, therefore, can according to different operating mode needs, the decrement of adjustment spring 8, and then adjustment spring 8 balances the ratio of floating drum 9 gravity, and then use the different working condition requirement needed.Preferred technological scheme is that described balance spring 8 is fixed in described hollow tubular 29 by adjustable lever 30 and adjusting nut 10 adjustable ground further, described adjustable lever 30 top is fixed on described floating drum 9 top, described adjustable lever 30 bottom and described valve rod 6 top are fixed, described adjustable lever 30 is threaded with described adjusting nut 10, top and the adjusting nut 10 of described balance spring 8 are fixed, and bottom and described air valve seat 5 top of described balance spring 8 are fixed.During use, rotation adjusting lever 30, due to adjustable lever 30 and adjusting nut 10 rotation adjusting lever 30, because adjustable lever 30 is threaded with adjusting nut 10, therefore adjusting nut 10 rises along with the rotation of adjustable lever 30 or declines, and then can adjust the decrement of balance spring 8.Certainly can also be other spring adjusting device, as long as the decrement of balance spring 8 can be adjusted.The advantage of above-described balance spring 8 position adjustment structure is that structure is simple, cost is low, easy to adjust, and the stationarity that balance spring 8 adjusts can be ensured.Further preferred technological scheme is described adjustable lever 30 top is fixed on the described hollow tubular 29 of floating drum 9 top by locking nut 11, and described hollow tubular 29 passes described floating drum 9 and is welded and fixed with described floating drum 9.Fixing so more firmly and also cost low.
A kind of self-powering type gas-liquid two-phase fluid level control valve of the present utility model, please refer to Fig. 1 to Fig. 2, the basis of previously described technological scheme can also be: described valve body comprises outer valve 1 and inner valve body 2, described outer valve 1 top is connected with liquid regions with the gas zones of described gas-liquid mixed tank 23 respectively with bottom, described gas-liquid mixed chamber 18 is positioned at described inner valve body 2, described inner valve body 2 is fixed with the bottom of described air valve seat 5 and the top of described liquid valve seat 3, described outer valve 1 is fixed with the top of described air valve seat 5 and the bottom of described liquid valve seat 3 respectively, described air chamber is by described outer valve 1, between inner valve body 2 and described air valve seat 5, region surrounds, described liquid container is by described outer valve 1, between inner valve body 2 and described liquid valve body, region surrounds.The valve body of this spline structure can realize the perfection division in air chamber, liquid container, gas-liquid mixed chamber 18, make the single valve body of valve body can realize object of the present invention, and do not need to use other accessories multiple to form air chamber, liquid container and gas-liquid mixing chamber 18, and then simplified equipment unit, make equipment occupation space little as far as possible, cost is low as far as possible.Preferred technological scheme is that described outer valve 1 side is provided with gas import 16 further, described gas-liquid mixed outlet 19 is positioned at the opposite side of described outer valve 1, liquid import 17 is provided with bottom described outer valve 1, described gas import 16 is exported 24 with the gas of the gas zones of described gas-liquid mixed tank 23 and is communicated with by gas feeding duct between the two, and described liquid import 17 and the liquid of the liquid regions of described gas-liquid mixed tank 23 are exported 26 and is communicated with by liquid input tube road between the two.Like this, by the docking of the gentle outlet 24 of gas import 16 and gas feeding duct be communicated with, achieve being communicated with of the gas zones of air chamber and gas-liquid mixing tank 23, by the docking in liquid import 17 and liquid outlet 26 and liquid input tube road be communicated with, achieve being communicated with of the liquid regions of liquid container and gas-liquid mixing tank 23.Certainly can also use other mode of communicating, as long as air chamber can be communicated with gas zones, liquid container is communicated with liquid regions.Further preferred technological scheme is that described measuring apparatus comprises mass flowmenter 28 and gas flowmeter 27, described mass flowmenter 28 is arranged on the liquid input tube road between described liquid outlet 26 and described liquid import 17, and described gas flowmeter 27 is arranged on the gas feeding duct between described gas outlet 24 and described gas import 16.Like this, gas flowmeter 27 and mass flowmenter 28 can measure the input gas of valve body and the flow of liquid respectively, realize the separate measurement of gas and liquid.
A kind of self-powering type gas-liquid two-phase fluid level control valve of the present utility model, please refer to Fig. 1 to Fig. 2, the basis of previously described technological scheme can also be: described spool comprises superposed gas valve core 13 and is positioned at the liquid spool 4 of bottom and is connected the connecting rod 20 of described gas valve core 13 and described liquid spool 4, described connecting rod 20 is positioned at described gas-liquid mixed chamber 18, described gas valve core 13 and described air valve seat 5 can remove formula offset or away from and close or open being communicated with of described air chamber and described gas-liquid mixed chamber 18, described liquid spool 4 and described liquid valve seat 3 can remove formula offset or away from and close or open being communicated with of described liquid container and described gas-liquid mixed chamber 18.Such gas valve core 13 and liquid spool 4 link under can be implemented in the effect of valve rod 6, make the keying between gas valve core 13 and air valve seat 5 contrary with aperture size adjustment with the keying between liquid spool 4 and liquid valve seat 3 with aperture size adjustment, and then realize Liquid level and gas-liquid separate measurement.Can also be that described gas-liquid cylinder 7 top stretches out and is provided with gas connection mouth 14, described gas-liquid cylinder 7 bottom stretches out and is provided with liquid connection mouth 15, described gas connection mouth 14 is communicated with by the gas position mouth 21 be arranged on described gas-liquid mixed tank 23 with the gas zones of described gas-liquid mixed tank 23, and described liquid connection mouth 15 is communicated with the liquid level mouth 22 on described gas-liquid mixed tank 23 by arranging with the liquid regions of described gas-liquid mixed tank 23.The pressure that can realize like this in gas-liquid cylinder 7 is consistent with the pressure in gas-liquid mixed tank 23 and liquid level position with liquid level position, and then when in gas-liquid mixed tank 23, liquid level is too high or too low, ensure that in gas-liquid cylinder 7, liquid level is too high or too low, and then make floating drum 9 rise or decline, band ovable valve stem 6 and spool rise or decline, adjustment enters the uninterrupted of the liquids and gases of valve body, realizes the level control in gas-liquid mixed tank 23 and gas-liquid separate measurement.Can also be described gas-liquid cylinder 7 be column-shaped barrel, described cylinder top be provided with blind flange 12, and described blind flange 12 seal with described cylinder top and fixes.Like this, achieve the sealing of cylindrical shell, ensure that pressure in gas-liquid cylinder 7 and liquid surface can not be subject to the impact of ambient air and other factors.
Above-mentionedly only several specific embodiments in the utility model to be illustrated; but can not as protection domain of the present utility model; every according to the change of the equivalence done by design spirit in the utility model or to modify or equal proportion zooms in or out, all should think and fall into protection domain of the present utility model.