CN106050753A - Liquid medium gas compression/expansion machine - Google Patents
Liquid medium gas compression/expansion machine Download PDFInfo
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- CN106050753A CN106050753A CN201610540335.1A CN201610540335A CN106050753A CN 106050753 A CN106050753 A CN 106050753A CN 201610540335 A CN201610540335 A CN 201610540335A CN 106050753 A CN106050753 A CN 106050753A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F13/00—Pressure exchangers
Abstract
A liquid medium gas compression/expansion machine is formed by assembling a pressure container, a valve, a pressure sensor, a liquid level sensor, a programmable logic controller (PLC), a hydraulic machine and a motor which are conventional. The liquid medium gas compression/expansion machine is mainly characterized in that liquid is used as an energy transfer medium in the gas compression or expansion process, and the defects that gas is low in viscosity, small in density and high in direct compression or expansion energy consumption are overcome. Compared with an existing gas compression or expansion machine, the liquid medium gas compression/expansion machine is high in efficiency, easy to manufacture, low in cost and capable of conveniently and efficiently adjusting parameters such as pressure and flow. The liquid medium gas compression/expansion machine can efficiently replace existing gas compression or expansion machines of all purposes by selecting different liquid media (such as water and hydraulic oil), is particularly suitable for an air energy storage automobile, natural pressure energy power generation, waste heat power generation, gas fractionation, compressed air energy storage peaking generation, refrigeration, heating and other energy-saving and environment-friendly projects.
Description
Technical field
The present invention relates to one liquid and do medium, substitute the method and device of mechanism of qi with liquid machine；More specifically, it is to use
Liquid pump (water pump, oil pump) substitutes compressor (air compressor machine, ammonia compressor, hydrogen gas compressor)；With hydraulic motor (hydraulic turbine, oil motor)
Substitute the method and device of decompressor (screw expander, Piston Expander, turbo-expander).
Technical background
Gas compressor and gas expander are different by its operation principle, can be divided into displacement type and the big class of velocity profile two:
The kind of displacement type is a lot, and general have compression the most simultaneously and expand two kinds of functions, as swollen in piston compressor, piston type
Swollen machine；Sliding-vane compressor, sliding vane type expander；Diaphragm vane compressor, diaphragm type decompressor；Screw compressor, screw rod
Formula decompressor；Scroll compressor, scroll expansion machine.
All by the direct compressed gas of external force, make what the volume of gas reduced to be called compressor；All utilize gas pressure energy
Externally acting, makes what gas volume increased to be just called decompressor.
The machinery of the two kinds of calls currently mainly having a class mode of velocity profile, this class typically can not antikinesis, i.e.
Compressor can not serve as decompressor, and decompressor can not be operated in compressive state.
The one of velocity profile is to be driven impeller high speed rotating by external force, and impeller drives gas high speed rotating, utilizes high-speed rotary
The centrifugal force turning gas makes the pressure of gas increase, and what volume reduced is called centrifugal compressor or referred to as supercharger；Another kind of
It is to first pass through nozzle gas pressure can change into the kinetic energy of gas high-speed motion, then impacts impeller with the gas of high-speed motion,
The kinetic energy of gas is changed into mechanical energy, externally does work, and make what the volume of gas increased to be just called turbo-expander.
But gas has the disadvantages that with liquid phase ratio
1, viscosity is low: gas, in compression and expansion process, seals difficulty, because of the leakage of gas or increases for reducing gas leakage face
Add the pressure between moving surface and stationary face, cause associated mechanical efficiency low.
2, proportion is little, and the proportion of the gas under normal pressure typically only has about the one thousandth of liquid, the gas of same volume
Reach with liquid phase with centrifugal force or identical kinetic energy, more than 30 times of its speed liquid to be reached, cause its velocity profile
Product is all current supervelocity product.And the balance of ultrahigh speed machinery and bearing are the world-famous puzzles of machine-building；Ultrahigh speed
Air seal between moving surface and stationary face is also the world-famous puzzle of machine-building.Thus result in associated mechanical manufacturing cost high,
Inefficiency.
3, during gas compression, its temperature can raise, and volume can increase, and the power consumption of adiabatic compression reaches the two of isotherm compression
Times；And when expanding, the temperature of gas can reduce, and volume can reduce, and the external work of adiabatic expansion only has the 1/ of isothermal expansion
2.Current associated mechanical, either displacement type or velocity profile, equal groundwork, in adiabatic process, causes associated mechanical efficiency
Low.
4, because of conventional AC speed substantially constant, gas compression or expander pressure or flow is caused to adjust difficulty.
Summary of the invention
It is an object of the invention to: invention one uses liquid to do medium, utilize liquid machine to substitute the method and device of mechanism of qi；With
Overcome the deficiency of existing mechanism of qi, reach to improve gas compression or the efficiency of expansion, reduce the manufacturing cost of associated mechanical.
For realizing goal of the invention, the technical solution used in the present invention is:
Liquid matchmaker's gas compressor/expander, includes: pressure vessel A and B, valve FA1, FA2, FA3, FA4, FB1, FB2, FB3 and
FB4, pressure transducer PT1 and PT2, liquid level sensor LCT1 and LCT2, PC application, the mechanical, electrical machine of liquid, fluid infusion
Valve BF and draining valve BF；It is characterized in that: the upper end of pressure vessel is connected to the valve FA1 coupled with high-pressure air source S1 respectively
And FB1, valve FA2 and FB2 coupled with low-pressure gas source；The lower end of pressure vessel is connected to couple valve with liquid machine entrance respectively
FA4 and FB4, couples valve FA3 and FB3 with the outlet of liquid machine；Be respectively equipped with on pressure vessel A and B liquid level sensor LCT1 and
LCT2；Pressure transducer PT1 and PT2 it is respectively equipped with in high-pressure air source S1 and low-pressure gas source S2；By turning between liquid machine and motor
Axle couples.
The signal of liquid level sensor LCT1, LCT2 and pressure transducer PT1 and PT2 sends into PC application, can
Programming controller PLC according to the signal sequence that pressure transducer and liquid level sensor are sent into control related valve "ON" and
"Off", completes the compression of gas or expands work process.
Described fluid infusion valve BF and draining valve PF is installed in the lower end of pressure vessel B；Liquid level as pressure vessel A
Reach high set point time, if the liquid level of pressure vessel B is higher than minimum set point, open draining valve PF, discharge unnecessary liquid
Body；When the liquid level of pressure vessel A reaches high set point, if the liquid level of pressure vessel B is less than minimum set point, open discharge opeing
Valve BF, makes the liquid level of pressure vessel B drop to minimum set point.Thus ensure that when the liquid level of pressure vessel A rises to
High set point drops to the synchronization of minimum set point with the liquid level of pressure vessel B, namely ensure that when in the liquid level of pressure vessel B
Be raised to high set point time drop to the synchronization of minimum set point with the liquid level of pressure vessel A.
Here, it should be noted that the present invention is to utilize existing element and equipment, be assembled into liquid matchmaker's compressor or liquid matchmaker
Decompressor.Therefore its element and equipment specific constructive form, installation site, connecting relation are not the emphasis of the present invention.The present invention
It is important that: after first expecting utilizing the signals such as sensor acquisition pressure, liquid level, by controlling the "ON" of valve and "Off" and suitable
Sequence, uses fluid as medium, is achieved that the method efficiently substituting gas compressor and gas expander with liquid machine.
Accompanying drawing explanation
Fig. 1 is the general principle structural representation that the present invention implements；
Fig. 2 is the theory structure schematic diagram of a kind of liquid matchmaker's compressor；
Fig. 3 is the theory structure schematic diagram of a kind of liquid matchmaker's decompressor；
Fig. 4 is the theory structure schematic diagram of a kind of liquid matchmaker's decompressor without detecting low-pressure gas source pressure；
Fig. 5 is a kind of in gas compression processes, the liquid matchmaker's compressor theory structure schematic diagram cooling down gas；
Fig. 6 is a kind of during gas expansion, the liquid matchmaker's decompressor theory structure schematic diagram heating gas；
Fig. 7 is the theory structure schematic diagram of a kind of liquid dual-purpose machine of matchmaker's compression/expansion.
Embodiment one
A kind of liquid dual-purpose machine of matchmaker's gas compression/expansion made according to claim 2, as shown in Figure 7, it is characterised in that: liquid machine
Liquid pump is rotated, such as screw pump, gear pump for displacement type；Valve FA1 and valve FB1 are parallel with and point to high pressure from pressure vessel
The check valve of source of the gas S1；Valve FA2 and valve FB2 are parallel with the check valve pointing to pressure vessel from low-pressure gas source S2；
Control condition and sequence of movement when using as compressor be:
1, detect that the liquid level of pressure vessel A reaches high set point or the liquid level of pressure vessel B when PC application
Reach minimum set point, and the pressure of high-pressure air source S1 is less than when setting pressure, Open valve FA4 and FB3, closes valve FA3
And FB4.Now, the liquid in pressure vessel A flows to pressure vessel B under the effect of liquid pump, the gas pressure of pressure vessel A
Progressively declining, when its interior gas pressure is less than the pressure of low-pressure gas source S2, check valve FA2 automatically opens up, low-pressure gas source S2
Gas begin to flow in pressure vessel A；Meanwhile, liquid level and the gas pressure of pressure vessel B gradually rise, when its pressure is high
When the pressure of high-pressure air source S1, check valve FB1 automatically opens up, and the gas of pressure vessel B starts to be injected in high-pressure air source S1,
Complete a compression process of gas, and step into order 3 or 4.
2, detect that the liquid level of pressure vessel A reaches high set point or pressure vessel B when PC application
Liquid level reaches minimum set point, and when high-pressure air source S1 pressure is more than setting pressure, Open valve FA4 and FA3, closes valve
FB3 and FB4；Now, the liquid in pressure vessel A is played self-loopa by liquid pump, and the liquid in two pressure vessels remains unchanged, etc.
Treat below the maximum pressure that high-pressure air source S1 pressure drops to set, automatically into the work process of order 1.
3, detect that the liquid level of pressure vessel B reaches high set point or pressure vessel A when PC application
Liquid level reaches minimum set point, and the pressure of high-pressure air source S1 is less than when setting pressure, Open valve FB4 and FA3, closes valve
FB3 and FA4.Now, the liquid in pressure vessel B flows to pressure vessel A under the effect of liquid pump, the gas of pressure vessel B
Pressure progressively declines, and when its interior gas pressure is less than the pressure of low-pressure gas source S2, check valve FB2 automatically opens up, low pressure gas
The gas of source S2 begins to flow in pressure vessel B；Meanwhile, liquid level and the gas pressure of pressure vessel A gradually rise, when it is pressed
When power is higher than the pressure of high-pressure air source S1, check valve FA1 automatically opens up, and the gas of pressure vessel A starts to be injected into high-pressure air source
In S1, and step into order 1 or the process of order 2.
4, detect that the liquid level of pressure vessel B reaches high set point or pressure vessel A when PC application
Liquid level reaches minimum set point, and when high-pressure air source S1 pressure is more than setting pressure, Open valve FB4 and FB3, closes valve
FA3 and FA4；Now, the liquid in pressure vessel B is played self-loopa by liquid pump, and the liquid in two pressure vessels remains unchanged, etc.
Treat below the maximum pressure that high-pressure air source S1 pressure drops to set, the work process of entering order 3.
Control condition and sequence of movement when using as decompressor be:
1, detect that the liquid level of pressure vessel A reaches high set point or the liquid level of pressure vessel B when PC application
Reach minimum set point, and low-pressure gas source S2 pressure be less than setting pressure, opens FA1, FB2, FA4 and FB3, close FA2, FA3,
FB4 and FB1；Now, the liquid in pressure vessel A is under the effect of high-pressure air source S1, by valve FA4, fluid motor and valve
Door FB3 flows to pressure vessel B, makes the external work done of hydraulic motor；Meanwhile, the gases at high pressure volume in pressure vessel A constantly on
Rising, the liquid that the gas of pressure vessel B is constantly risen is expressed in low-pressure gas source S2；Gases at high pressure in pressure vessel A
When the volumetric ratio of volume and pressure vessel A rises to low-pressure gas pressure with high-pressure gas pressure ratio+temperature compensation coefficient, close
Valve closing door FA1；Hereafter, the high pressure gas expansion in pressure vessel A, its interior liquid progressively discharge pressure container A, and continue logical
Cross the external work done of hydraulic pump, until the pressure in pressure vessel A is close to the pressure of pressure vessel B, entering order 3 or order 4.
2, detect that the liquid level of pressure vessel A reaches high set point or pressure vessel B when PC application
When liquid level reaches minimum set point, and when low-pressure gas source S2 pressure is more than setting pressure, unlatching FB2, FA3, FA4, closedown FA1,
FA2, FB4, FB3 and FB1；Now, the liquid in pressure vessel A is played self-loopa by liquid pump, and the liquid level of two pressure vessels maintains
Constant, wait when low-pressure gas source S2 pressure drops to setting value, the process of repetitive sequence 1.
3, detect that the liquid level of pressure vessel B reaches high set point or pressure vessel A when PC application
When liquid level reaches minimum set point, and low-pressure gas source S2 pressure is less than setting pressure, opens FB1, FA2, FB4 and FA3, closes
FB2, FB3, FA4 and FA1；Now, the liquid in pressure vessel B is under the effect of high-pressure air source S1, by valve FB4, liquid
Motor and valve FA3 flow to pressure vessel A, make the external work done of hydraulic motor；Meanwhile, when the gases at high pressure in pressure vessel B
Volume constantly rises, and the liquid that the gas of pressure vessel A is constantly risen is expressed in low-pressure gas source S2；When in pressure vessel B
The volumetric ratio of gases at high pressure volume and pressure vessel B rise to low-pressure gas pressure and high-pressure gas pressure ratio+temperature-compensating
During coefficient, close valve FB1；Hereafter, the high pressure gas expansion in pressure vessel B, continue through the external work done of hydraulic pump, until
Repetitive sequence 1 or the process of order 2.
4, detect that the liquid level of pressure vessel B reaches high set point or pressure vessel A when PC application
When liquid level reaches minimum set point, and when low-pressure gas source S2 pressure is more than setting pressure, unlatching FA2, FB3 and FB4, closedown FB1,
FB2, FBA4, FA3 and FA1；Now, the liquid in pressure vessel A is played self-loopa by liquid pump, and the liquid level of two pressure vessels maintains
Constant, wait that low-pressure gas source S2 pressure drops to setting value and is, the process of repetitive sequence 3.
The manner uses liquid carry out gas as medium or expand, has the advantage that A, avoids gas because gluing
Spend the leakage loss of little generation, or for reducing the leakage of gas, and the frictional dissipation increasing rolling contact surface pressure and producing；B、
Liquid pump, in adjusting high-pressure process, is to play self-loopa in same pressure vessel, does not has difference pressuring loss, therefore, and pressure and flow
Regulation efficiency is high.
Having convenience and high-efficiency regulation post-expansion gas pressure this point critically important, it may apply to natural valve station, will
The natural of high pressure is readily tuned to low pressure natural gas, to substitute the widely used pressure regulation in current natural valve station sledge, it is achieved sky
So while controlled atmosphere seamless power, externally generate electricity.
The dual-purpose machine of liquid matchmaker's gas compression/expansion, can conveniently realize compressed-air energy storage peaking generation.Will low power consumption time
Unnecessary electricity, utilize its compression function, be compressed into gases at high pressure and store；And when peak of power consumption, utilize it to expand function,
High pressure gas expansion is generated electricity, returns electrical network.
The manner should select different liquid matchmakers according to different application, and such as compressed air, optional water is as liquid matchmaker；
As compressed ammonia, liquid matchmaker cannot be used water as, and oil should be selected as liquid matchmaker；Compressed natural gas, because natural gas needs dehydration,
Also oil should be selected as liquid matchmaker.
Embodiment two
A kind of liquid gas gas compressor made according to claim 3, as shown in Figure 2, it is characterised in that: liquid machine is liquid pump, and
Owing to the proportion of liquid is nearly thousand times of gas, can be selected for centrifugal liquid pump.Motor is motor, and optional cost is lower
AC asynchronous motor.Valve FA1 and valve FB1 is the check valve pointing to high-pressure air source S1 from pressure vessel；Valve FA2 and
Valve FB2 is the check valve pointing to pressure vessel from low-pressure gas source S2；Its control condition and sequence of movement be:
1, detect that the liquid level of pressure vessel A reaches high set point or the liquid level of pressure vessel B when PC application
Reach minimum set point, and the pressure of high-pressure air source S1 is less than when setting pressure, Open valve FA4 and FB3, closes valve FA3
And FB4.Now, the liquid in pressure vessel A flows to pressure vessel B under the effect of liquid pump, the gas pressure of pressure vessel A
Progressively declining, when its interior gas pressure is less than the pressure of low-pressure gas source S2, check valve FA2 automatically opens up, low-pressure gas source S2
Gas begin to flow in pressure vessel A；Meanwhile, liquid level and the gas pressure of pressure vessel B gradually rise, when its pressure is high
When the pressure of high-pressure air source S1, check valve FB1 automatically opens up, and the gas of pressure vessel B starts to be injected in high-pressure air source S1,
Complete a compression process of gas, and step into order 3 or 4.
2, detect that the liquid level of pressure vessel A reaches high set point or pressure vessel B when PC application
Liquid level reaches minimum set point, and when high-pressure air source S1 pressure is more than setting pressure, Open valve FA4, closes valve FB3, FA3
And FB4；Now, liquid pump remains unchanged because of its outlet valve Close All, the liquid in two pressure vessels, waits high-pressure air source
S1 pressure drops to below the maximum pressure of setting, the work process of repetitive sequence 1.
3, detect that the liquid level of pressure vessel B reaches high set point or pressure vessel A when PC application
Liquid level reaches minimum set point, and the pressure of high-pressure air source S1 is less than when setting pressure, Open valve FB4 and FA3, closes valve
FB3 and FA4.Now, the liquid in pressure vessel B flows to pressure vessel A under the effect of liquid pump, the gas of pressure vessel B
Pressure progressively declines, and when its interior gas pressure is less than the pressure of low-pressure gas source S2, check valve FB2 automatically opens up, low pressure gas
The gas of source S2 begins to flow in pressure vessel B；Meanwhile, liquid level and the gas pressure of pressure vessel A gradually rise, when it is pressed
When power is higher than the pressure of high-pressure air source S1, check valve FA1 automatically opens up, and the gas of pressure vessel A starts to be injected into high-pressure air source
In S1, and step into order 1 or the process of order 2.
4, detect that the liquid level of pressure vessel B reaches high set point or pressure vessel A when PC application
Liquid level reaches minimum set point, and when high-pressure air source S1 pressure is more than setting pressure, Open valve FB4, closes valve FA3, FB3
And FA4；Now, liquid pump remains unchanged because of its outlet valve Close All, the liquid in two pressure vessels, waits high-pressure air source
S1 pressure drops to below the maximum pressure of setting, the work process of repetitive sequence 3.
Embodiment three
A kind of liquid matchmaker's gas expander made according to claim 4, as shown in Figure 3, it is characterised in that: liquid machine be conventional from
Core type fluid motor, motor is conventional alternating current generator；Valve FA4 and valve FB4 is to point to liquid machine entrance from pressure vessel
Check valve.Its control condition and sequence of movement be:
1, detect that the liquid level of pressure vessel A reaches high set point or the liquid level of pressure vessel B when PC application
Reach minimum set point, and low-pressure gas source S2 pressure be less than setting pressure, opens FA1, FB2 and FB3, close FA2, FA3 and
FB1；Now, the liquid level in pressure vessel A is under the effect of high-pressure air source S1, by valve FA4, fluid motor and valve FB3
Flow to pressure vessel B, make the external work done of hydraulic motor；Meanwhile, the gases at high pressure volume in pressure vessel A constantly rises, pressure
The liquid that the gas of force container B is constantly risen is expressed in low-pressure gas source S2；When the gases at high pressure volume in pressure vessel A with
When the volumetric ratio of pressure vessel A rises to low-pressure gas pressure with high-pressure gas pressure ratio+temperature compensation coefficient, close valve
FA1；Hereafter, the high pressure gas expansion in pressure vessel A, its interior liquid progressively discharge pressure container A, and continue through hydraulic pressure
The external work done of motor, until the pressure in pressure vessel A is close to the pressure of pressure vessel B, entering order 3 or order 4.
2, detect that the liquid level of pressure vessel A reaches high set point or pressure vessel B when PC application
When liquid level reaches minimum set point, and low-pressure gas source S2 pressure more than set pressure time, open FB2, close FA1, FA2, FA3,
FB3 and FB1；Now, the liquid level of two pressure vessels remains unchanged, and waits when low-pressure gas source S2 pressure drops to setting value, weight
The process of multiple order 1.
3, detect that the liquid level of pressure vessel B reaches high set point or pressure vessel A when PC application
When liquid level reaches minimum set point, and low-pressure gas source S2 pressure is less than setting pressure, unlatching FB1, FA2 and FB3, closedown FB2,
FB3 and FA1；Now, the liquid in pressure vessel B is under the effect of high-pressure air source S1, by valve FB4, fluid motor and valve
Door FA3 flows to pressure vessel A, makes the external work done of hydraulic motor；Meanwhile, the gases at high pressure volume in pressure vessel B constantly on
Rising, the liquid that the gas of pressure vessel A is constantly risen is expressed in low-pressure gas source S2；Gases at high pressure in pressure vessel B
When the volumetric ratio of volume and pressure vessel B rises to low-pressure gas pressure with high-pressure gas pressure ratio+temperature compensation coefficient, close
Valve closing door FB1；Hereafter, the high pressure gas expansion in pressure vessel A, continue through the external work done of hydraulic motor, until repeating suitable
Sequence 1 or the process of order 2.
4, detect that the liquid level of pressure vessel B reaches high set point or pressure vessel A when PC application
When liquid level reaches minimum set point, and low-pressure gas source S2 pressure more than set pressure time, open FA2, close FB1, FB2, FB3,
FA3 and FA1；Now, the liquid level of two pressure vessels remains unchanged, and waits that low-pressure gas source S2 pressure drops to setting value and is, weight
The process of multiple order 3.
Embodiment four
A kind of liquid matchmaker swollen machine of swollen gas made according to claim 5, as shown in Figure 4, it is characterised in that: when without detecting low pressure
During source of the gas S2 pressure, valve FA3 and FB3 changes to point to the check valve of pressure vessel, the unlatching of two valves from the outlet of liquid machine
Opportunity is automatically controlled by the pressure at its two ends, and can omit low-pressure gas source pressure transducer；The regulation of its flow can be by adjusting
The flow of liquid machine reaches, and its control condition and sequence of movement be:
1, detect that the liquid level of pressure vessel A reaches high set point or the liquid level of pressure vessel B when PC application
Reach minimum set point, and low-pressure gas source S2 pressure is less than setting pressure, opens FA1 and FB2, closes FA2 and FB1；Now, pressure
Liquid level in force container A is under the effect of high-pressure air source S1, by valve FA4, fluid motor and valve FB3 to pressure vessel B
Flowing, makes the external work done of hydraulic motor；Meanwhile, the gases at high pressure volume in pressure vessel A constantly rises, the gas of pressure vessel B
The liquid that body is constantly risen is expressed in low-pressure gas source S2；When the gases at high pressure volume in pressure vessel A is with pressure vessel A's
When volumetric ratio rises to low-pressure gas pressure with high-pressure gas pressure ratio+temperature compensation coefficient, close valve FA1；Hereafter, pressure
High pressure gas expansion in force container A, continues through the external work done of hydraulic motor, and steps into job order 2.
2, detect that the liquid level of pressure vessel B reaches high set point or pressure vessel A when PC application
When liquid level reaches minimum set point, and low-pressure gas source S2 pressure is less than setting pressure, opens FB1 and FA2, closes FB2 and FA1；
Now, the liquid level in pressure vessel B is under the effect of high-pressure air source S1, by valve FB4, fluid motor and valve FA3 to pressure
Force container A flows, and makes the external work done of hydraulic motor；Meanwhile, when the gases at high pressure volume in pressure vessel B constantly rises, pressure
The liquid that the gas of container A is constantly risen is expressed in low-pressure gas source S2；When the gases at high pressure volume in pressure vessel B and pressure
When the volumetric ratio of force container B rises to low-pressure gas pressure with high-pressure gas pressure ratio+temperature compensation coefficient, close valve
FB1；Hereafter, the high pressure gas expansion in pressure vessel A, continue through the external work done of hydraulic motor, until the work of repetitive sequence 1
Make process.
Embodiment five
A kind of liquid gas gas compressor made according to claim 6, as shown in Figure 5, it is characterised in that: at the outlet of liquid machine and valve
Between the entrance of door FA3 and FB3, it is additionally arranged cool exchanger, utilizes outer low-temperature receiver that liquid matchmaker is cooled down；It is provided with in pressure vessel A and B
Shower nozzle, sprays the liquid matchmaker after cooling from the top of pressure vessel, the gas after cooling compression.
Because outer low-temperature receiver cools down in gas compression processes, it is achieved that the approximation isotherm compression of gas, with adiabatic compression
Comparing, the efficiency of compressor can be made to improve 50%, the power i.e. consumed reduces nearly half.
Certainly, this programme also can make direct cooling pressure container A and B into.
Embodiment six
A kind of liquid matchmaker's decompressor made according to claim 7, as shown in Figure 6, it is characterised in that: at the outlet of liquid machine and valve
Between the entrance of FA3 and FB3, it is additionally arranged heat exchanger, utilizes external heat source that liquid matchmaker is heated；At high-pressure air source and valve FA1
And between the entrance of FB1, it is additionally arranged heat exchanger, utilize external heat source that gases at high pressure are heated.
Utilize external heat source that the gas in gases at high pressure and expansion process is heated, compared with adiabatic expansion, externally do
Merit improves by about one time, and if pressure is 30Mpa, temperature is the compressed air of 300K, and the external work of isothermal expansion is 491kJ/
Kg, and adiabatic expansion only has 241.3 kJ/kg.
Certainly, this programme can also select the scheme directly heated two pressure vessels.
Embodiment seven
A kind of liquid matchmaker's gas expander made according to Claim 8, it is characterised in that: by the hydraulic pressure horse of three same expansion machines
Reach impeller to be arranged in same rotating shaft, drive an electromotor, if these three decompressor electromagnetic valve action phase intervals phases
With；I.e. when the liquid level of First pressure vessel A is in extreme higher position, the liquid level of second pressure vessel A at 2/3, the 3rd
The liquid level of pressure vessel A is at 1/3, so that it may reduce fluctuation and the fluctuation of post-expansion gas pressure of generated output power.
Compared with the cylinder in internal combustion engine, because of a pressure vessel in this programme, only " driving stroke " and " aerofluxus
Stroke ", and the cylinder in internal combustion engine has " driving stroke ", " exhaust stroke ", " intake stroke " and " compression stroke " totally four " punchings
Journey ", therefore a pressure vessel in this programme is equivalent to two cylinders in internal combustion engine, as long as using six pressure vessels
(three same expansion machines), has just reached the stationarity of the internal combustion engine of 12 cylinders.
Those of ordinary skill in the art it is readily conceivable that: increases the same expansion machine fluid motor impeller in same rotating shaft
Quantity, the stationarity of generator operation can be improved；And reduce quantity, and cost-saved, common accordingly, as this area
Technical staff all can be according to the needs of reality application, the quantity of increase and decrease impeller, for saving narration length, at this not to using other
The impeller of number schematically illustrates.
Certainly, as made compressed-air energy storage automobile, optimum scheme still does a compressed-air energy storage+super capacitor
The scheme of energy storage (battery) is with the liquid matchmaker gas expander+super capacitor+motor of two pressure vessels, so, the most permissible
Reduce the weight of liquid matchmaker's gas expander, the also control for compressed-air energy storage automobile to provide conveniently.
Embodiment eight
A kind of liquid gas gas compressor made according to claim 9, it is characterised in that: by the leaf of three identical compressor liquid pumps
Wheel is arranged in same rotating shaft, by a motor-driven, if the phase at this multiple stage decompressor electromagnetic valve sequence of movement interval
Position is identical, i.e. when the liquid level of First pressure vessel A is in extreme higher position, the liquid level of second pressure vessel A at 2/3, the
The liquid level of three pressure vessel A may be reduced by the fluctuation of motor input power and the fluctuation of high-pressure gas pressure at 1/3.
Those of ordinary skill in the art it is readily conceivable that: increases the liquid pump impeller of identical compressor in same rotating shaft
Quantity, can improve the stationarity of electric motor operation；And reduce quantity, cost-saved.
Claims (10)
1. a liquid matchmaker gas compressor/expander, includes: pressure vessel A and B, valve FA1, FA2, FA3, FA4, FB1,
FB2, FB3 and FB4, pressure transducer PT1 and PT2, liquid level sensor LCT1 and LCT2, PC application, liquid machine and
Motor；It is characterized in that: the upper end of pressure vessel is connected to valve FA1 and FB1 coupled with high-pressure air source S1 respectively, with low pressure gas
Valve FA2 and FB2 that source couples；The lower end of pressure vessel is connected to couple valve FA4 and FB4 with liquid machine entrance, with liquid machine respectively
Outlet couples valve FA3 and FB3；Liquid level sensor LCT1 and LCT2 it is respectively equipped with on pressure vessel A and B；High-pressure air source S1 and
Pressure transducer PT1 and PT2 it is respectively equipped with in low-pressure gas source S2；Coupled by rotating shaft between liquid machine and motor；Liquid level sensor
The signal of LCT1, LCT2 and pressure transducer PT1 and PT2 sends into PC application, PC application root
The signal sequence sent into according to pressure transducer and liquid level sensor controls "ON" and the "Off" of related valve, completes the compression of gas
Or expansion work process.
The liquid dual-purpose machine of matchmaker's gas compression/expansion that liquid matchmaker's gas compression/expansion mechanism the most according to claim 1 is made；Its
It is characterised by: liquid machine is that displacement type rotates liquid pump, such as screw pump, gear pump；Valve FA1 and valve FB1 are parallel with from pressure
Force container points to the check valve of high-pressure air source S1；Valve FA2 and valve FB2 are parallel with and point to pressure appearance from low-pressure gas source S2
The check valve of device；Control condition and sequence of movement when using as compressor be: when PC application detects pressure
The liquid level of force container A reaches the liquid level of high set point or pressure vessel B and reaches minimum set point, and high-pressure air source pressure is less than
Set pressure, Open valve FA4 and FB3, close valve FA3 and FB4；When PC application detects pressure vessel A
Liquid level reach the liquid level of high set point or pressure vessel B and reach minimum set point, and high-pressure air source S1 pressure is more than setting
Pressure, Open valve FA4 and FA3, closes valve FB3 and FB4；When PC application detects the liquid of pressure vessel B
Position reaches the liquid level of high set point or pressure vessel A and reaches minimum set point, and high-pressure air source pressure is less than setting pressure, opens
Open valve FB4 and FA3, close valve FB3 and FA4；When PC application detects that the liquid level of pressure vessel B reaches
The liquid level of high set point or pressure vessel A reaches minimum set point, and high-pressure air source S1 pressure is more than setting pressure, opens valve
Door FB4 and FB3, closes valve FA3 and FA4；Control condition and sequence of movement when using as decompressor be: works as programmable
Controller PLC detects that the liquid level of pressure vessel A reaches the liquid level of high set point or pressure vessel B and reaches minimum set point
Time, and low-pressure gas source S2 pressure is less than setting pressure, opens FB2, FA1, FA4 and FB3, closes FA2, FA3, FB4 and FB1；When
Gases at high pressure volume in pressure vessel A rises to low-pressure gas pressure and high-pressure gas pressure with the volumetric ratio of pressure vessel A
During ratio+temperature compensation coefficient, close valve FA1；When PC application detects that the liquid level of pressure vessel A reaches
When the liquid level of high set point or pressure vessel B reaches minimum set point, and low-pressure gas source S2 pressure is more than when setting pressure, opens
FB2, FA4 and FA3, close FA1, FA2, FB4, FB3 and FB1；When PC application detects the liquid of pressure vessel B
Position reaches the liquid level of high set point or pressure vessel A when reaching minimum set point, and low-pressure gas source S2 pressure is less than setting pressure
Power, opens FA2, FB1, FB4 and FA3, closes FB2, FB3, FA4 and FA1；When the gases at high pressure volume in pressure vessel B and pressure
When the volumetric ratio of force container B rises to low-pressure gas pressure with high-pressure gas pressure ratio+temperature compensation coefficient, close valve
FB1；When PC application detects that the liquid level of pressure vessel B reaches the liquid level of high set point or pressure vessel A and reaches
During to minimum set point, and low-pressure gas source S2 pressure more than set pressure time, open FA2, FB3, FB4, close FB1, FB2,
FA4, FA3 and FA1.
The liquid gas gas compressor that liquid matchmaker's gas compression/expansion mechanism the most according to claim 1 is made；It is characterized in that:
Liquid machine is centrifugal liquid pump, and motor is motor；Valve FA1 and valve FB1 is the list pointing to high-pressure air source S1 from pressure vessel
To valve；Valve FA2 and valve FB2 is the check valve pointing to pressure vessel from low-pressure gas source S2；Its low pressure measuring pressure sensor PT2
Because not as control signal, pressure transducer PT2 omits；Its control condition and sequence of movement be: works as PC application
Detect that the liquid level of pressure vessel A reaches the liquid level of high set point or pressure vessel B and reaches minimum set point, and high-pressure air source
Pressure, less than setting pressure, Open valve FA4 and FB3, closes valve FA3 and FB4；When PC application detects
The liquid level of pressure vessel A reaches the liquid level of high set point or pressure vessel B and reaches minimum set point, and high-pressure air source S1 pressure
More than setting pressure, Open valve FA4, closes valve FB3, FA3 and FB4；When PC application detects that pressure holds
The liquid level of device B reaches the liquid level of high set point or pressure vessel A and reaches minimum set point, and high-pressure air source pressure is less than setting
Pressure, Open valve FB4 and FA3, closes valve FB3 and FA4；When PC application detects the liquid of pressure vessel B
Position reaches the liquid level of high set point or pressure vessel A and reaches minimum set point, and high-pressure air source S1 pressure is more than setting pressure,
Open valve FB4, closes valve FA3, FB3 and FA4.
Liquid matchmaker's gas expander that liquid matchmaker's gas compression/expansion mechanism the most according to claim 1 is made, it is characterised in that:
Liquid machine is centrifugal hydraulic motor, and motor is electromotor；Valve FA4 and valve FB4 is to point to liquid machine entrance from pressure vessel
Check valve；Control condition and sequence of movement be: when PC application detects that the liquid level of pressure vessel A reaches the highest
When the liquid level of set-point or pressure vessel B reaches minimum set point, and low-pressure gas source S2 pressure is less than setting pressure, unlatching FB2,
FA1 and FB3, closes FA2, FA3 and FB1；When the volumetric ratio of the gases at high pressure volume in pressure vessel A with pressure vessel A rises
To low-pressure gas pressure with high-pressure gas pressure ratio+temperature compensation coefficient time, close valve FA1；Work as programmable controller
It is when reaching minimum set point and low that PLC detects that the liquid level of pressure vessel A reaches the liquid level of high set point or pressure vessel B
Pressurized air source S2 pressure, more than when setting pressure, opens FB2, closes FA1, FA2, FA3, FB3 and FB1；Work as programmable controller
PLC detects that the liquid level of pressure vessel B reaches the liquid level of high set point or pressure vessel A and reaches minimum set point, and low pressure
Source of the gas S2 pressure, less than setting pressure, opens FA2, FB1 and FA3, closes FB2, FB3 and FA1；High pressure in pressure vessel B
Gas volume rises to low-pressure gas pressure and high-pressure gas pressure ratio+temperature compensation coefficient with the volumetric ratio of pressure vessel B
Time, close valve FB1；When PC application detects that the liquid level of pressure vessel B reaches high set point or pressure and holds
When the liquid level of device A reaches minimum set point, and low-pressure gas source S2 pressure more than set pressure time, open FA2, close FB1, FB2,
FB3, FA3 and FA1.
Liquid matchmaker's gas expander the most according to claim 4, it is characterised in that: when without detecting low-pressure gas source S2 pressure
Time, valve FA3 and FB3 changes to point to the check valve of pressure vessel from the outlet of liquid machine, and it opens opportunity by the pressure at its two ends
Automatically control, and omit low-pressure gas source pressure transducer PT2；The regulation of its flow can reach by adjusting the flow of liquid machine, its
Its Valve controlling condition and sequence of movement be: when PC application detects that the liquid level of pressure vessel A reaches the highest and sets
Put a little or the liquid level of pressure vessel B reaches to open FA1 and FB2 during minimum set point, close FA2 and FB1；When in pressure vessel A
The volumetric ratio of gases at high pressure volume and pressure vessel A rise to low-pressure gas pressure and high-pressure gas pressure ratio+temperature-compensating
During coefficient, close valve FA1；When PC application detects that the liquid level of pressure vessel B reaches high set point or pressure
When the liquid level of force container A reaches minimum set point, open FB1 and FA2, close FB2 and FA1；High pressure gas in pressure vessel B
When the volumetric ratio of body volume and pressure vessel B rises to low-pressure gas pressure with high-pressure gas pressure ratio+temperature compensation coefficient,
Close valve FB1.
Liquid gas gas compressor the most according to claim 3, it is characterised in that: in the outlet of liquid machine with valve FA3's and FB3
Between entrance, it is additionally arranged cool exchanger, utilizes outer low-temperature receiver that liquid matchmaker is cooled down；Shower nozzle it is provided with, after cooling in pressure vessel
Liquid matchmaker sprays from the top of pressure vessel, the gas in cooling compression.
Liquid matchmaker's gas expander the most according to claim 4, it is characterised in that: in the outlet of liquid machine with valve FA3's and FB3
Between entrance, it is additionally arranged heat exchanger, utilizes external heat source that liquid matchmaker is heated；Entrance in high-pressure air source Yu valve FA1 and FB1
Between, it is additionally arranged heat exchanger, utilizes external heat source that gases at high pressure are heated.
Liquid matchmaker's gas expander the most according to claim 4, it is characterised in that: by three same expansion machine hydraulic motors
Impeller is arranged on same main shaft, drives an electromotor, if the phase at these three decompressor electromagnetic valve sequence of movement intervals
Position is identical；I.e. when the liquid level of First pressure vessel A is in extreme higher position, the liquid level of second pressure vessel A at 2/3,
The liquid level of three pressure vessel A is at 1/3；May be reduced by the fluctuation of generated output power.
Liquid gas gas compressor the most according to claim 3, it is characterised in that: by the impeller of three identical compressor liquid pumps
It is arranged in same rotating shaft, by a motor-driven, if the phase place at these three decompressor electromagnetic valve sequence of movement intervals
Identical；I.e. when the liquid level of First pressure vessel A is in extreme higher position, the liquid level of second pressure vessel A at 2/3, the 3rd
The liquid level of platform pressure vessel A is at 1/3；May be reduced by the fluctuation of motor input power.
Liquid matchmaker's gas compressor/expander the most according to claim 1, it is characterised in that: it is additionally provided with fluid infusion valve BF and row
Fluid valve PF, described fluid infusion valve BF and draining valve PF are installed in the lower end of pressure vessel B；Liquid as pressure vessel A
Position reach high set point time, if the liquid level of pressure vessel B is higher than minimum set point, open draining valve PF, it is unnecessary to discharge
Liquid；When the liquid level of pressure vessel A reaches high set point, if the liquid level of pressure vessel B is less than minimum set point, the row of opening
Fluid valve BF, makes the liquid level of pressure vessel B drop to minimum set point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610540335.1A CN106050753A (en) | 2016-07-11 | 2016-07-11 | Liquid medium gas compression/expansion machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610540335.1A CN106050753A (en) | 2016-07-11 | 2016-07-11 | Liquid medium gas compression/expansion machine |
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| CN106050753A true CN106050753A (en) | 2016-10-26 |
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| CN201610540335.1A Pending CN106050753A (en) | 2016-07-11 | 2016-07-11 | Liquid medium gas compression/expansion machine |
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| CN108915932A (en) * | 2018-06-28 | 2018-11-30 | 华北电力大学 | A kind of classification relay compressed-air energy-storage system and its operation control strategy |
| TWI661166B (en) * | 2018-01-31 | 2019-06-01 | 謝國卿 | Hydraulic refrigeration system (1) |
| CN109915337A (en) * | 2019-04-11 | 2019-06-21 | 河北金牛旭阳化工有限公司 | A kind of gas overbottom pressure cyclic utilization system and circulation utilization method |
| CN111779651A (en) * | 2020-06-24 | 2020-10-16 | 武汉润德工程技术有限公司 | Device and method for realizing continuous compression of steam by utilizing air energy |
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Application publication date: 20161026 |