CN103670553B - The method of operation of power generation arrangement and this device - Google Patents

The method of operation of power generation arrangement and this device Download PDF

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Publication number
CN103670553B
CN103670553B CN201310416974.3A CN201310416974A CN103670553B CN 103670553 B CN103670553 B CN 103670553B CN 201310416974 A CN201310416974 A CN 201310416974A CN 103670553 B CN103670553 B CN 103670553B
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CN
China
Prior art keywords
mentioned
decompressor
power generation
rotating machinery
heat engine
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Expired - Fee Related
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CN201310416974.3A
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Chinese (zh)
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CN103670553A (en
Inventor
足立成人
松村昌义
成川裕
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Kobe Steel Ltd
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Kobe Steel Ltd
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Priority claimed from JP2012203220A external-priority patent/JP5721676B2/en
Priority claimed from JP2012232032A external-priority patent/JP5819796B2/en
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of CN103670553A publication Critical patent/CN103670553A/en
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Publication of CN103670553B publication Critical patent/CN103670553B/en
Expired - Fee Related legal-status Critical Current
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K13/00—General layout or general methods of operation of complete plants
    • F01K13/02—Controlling, e.g. stopping or starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K15/00—Adaptations of plants for special use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/04—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled condensation heat from one cycle heating the fluid in another cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/08—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with working fluid of one cycle heating the fluid in another cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/12—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engines being mechanically coupled
    • F01K23/16—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engines being mechanically coupled all the engines being turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/18—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
    • F01K3/24—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters with heating by separately-fired heaters
    • F01K3/242—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters with heating by separately-fired heaters delivering steam to a common mains

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Control Of Turbines (AREA)

Abstract

The invention provides a kind of power generation arrangement.Can by the power produced by heat engine with and the power generation arrangement that utilizes of the power combination of driving source that arranges in addition of this heat engine in, in order to avoid when the starting of device, stop time occur problem, device of the present invention is made up of rotating machinery driving source and heat engine, described rotating machinery driving source produces rotary driving force to rotating machinery, and described heat engine is configured to act synergistically with above-mentioned rotating machinery driving source and drive above-mentioned rotating machinery; Above-mentioned heat engine possesses decompressor, and described decompressor makes the action media expansion of gasification and produces rotary driving force; Above-mentioned decompressor is provided with bypass pipe arrangement, and the action medium inlet of above-mentioned decompressor is communicated with action media outlet by described bypass pipe arrangement; Above-mentioned bypass pipe arrangement possesses open and close valve, and described open and close valve is by the opening and closing of above-mentioned bypass pipe arrangement.

Description

The method of operation of power generation arrangement and this device
Technical field
The present invention relates to by the power produced by heat engine with and the method for operation of the power generation arrangement that utilizes of the power combination of driving source that arranges in addition of this heat engine and this device.
Background technique
The such heat engine of binary cycle machine be by agree by orchid the [thermodynamic such as circulation by the action media expansion such as low boiling point working medium such as ammonia, pentane, freon, replacement fluorine Leon, condensation, thermal change is changed to the structure of power (be kinetic energy by thermal energy transformation).
Such heat engine possess the action medium of liquid is gasified vaporizer, make the decompressor of the steam expansion of action medium, make by the action medium condenses of the used gas of decompressor be liquid condenser and by condensed action media collapse and the recycle pump making it circulate.In addition, the rotary driving force obtained by the rotary actuation of this decompressor be fetched to via rotating driveshaft contain decompressor housing outside, use in order to the rotating machinery (such as generator etc.) making to be connected on rotating driveshaft rotates.
As the method making such heat engine smoothly start, there will be a known in such as No. 2008-175402, Japanese Unexamined Patent Publication and disclose such method.The method of operation of the freezing cycle device of this look-ahead technique possesses the compressor, radiator, decompressor and the vaporizer that connect to make refrigerant circulation successively, the evaporator capacity control mechanism of the heat-sink capabilities control mechanism also with the ability controlling above-mentioned radiator or the ability controlling above-mentioned vaporizer, has and the ability of above-mentioned heat-sink capabilities control mechanism or above-mentioned evaporator capacity control mechanism is controlled to be than set up procedure low when usually operating and usual commissioning steps in certain time when the starting of above-mentioned compressor.
; the generator possessed in the heat engine (freezing cycle device) of above-mentioned look-ahead technique is the structure that rotary driving force and carrying out that the decompressor being directly subject to heat engine produces generates electricity; i.e. " rotating machinery of follower "; certainly; when not obtaining rotary driving force from decompressor, generator is the original state stopped.
On the other hand, propose and producing rotary driving force by the such heat engine of binary cycle machine, utilizing the rotary driving force that obtains as being used for the technology of auxiliary power of " compensating the power of the driving source arranged in addition with heat engine ".Such as, the gas compressor driven by motor is imagined.This gas compressor self can be started, be operated " active rotating machinery " by oneself, considers the system of the rotary driving force this gas compressor auxiliarily being applied to heat engine.
In the case, can expect, when the starting of this system, the such undesirable condition of the following stated such as occurs.
That is, the motor of active rotating machinery and gas compressor is made to start and also make heat engine start.Now, because heat engine is not steady running state, so not only can not the rotating power of in the future self-expanding machine apply motor as auxiliary power, the motor of contrary gas compressor makes decompressor rotate, and the startup of entire system likely becomes slowly.In addition, in this situation, the action medium flowed into decompressor is liquid, and the rotary load of decompressor becomes excessive, likely causes the damage of decompressor.
Such undesirable condition is very great problem, can not be solved by above-mentioned look-ahead technique.
This is because the heat engine of above-mentioned look-ahead technique does not produce the auxiliary power of the power of the driving source arranged in addition for auxiliary and this heat engine, and system architecture is different originally.In addition, its method of operation is the method solving " undesirable conditions produced in heat engine " such as " recycle pump (being recited as compressor) continuous runnings under the state that decompressor does not drive; the load of recycle pump becomes large ", be not solve the present application as problem by the method for problem when heat engine and the starting in linking system that active rotating machinery thereon forms.
Summary of the invention
So, the present invention in view of the above problems, about the power generation arrangement that the power combination of the power produced by heat engine and the driving source arranged in addition with this heat engine can be utilized, object be to provide a kind ofly can reliably avoid when the starting of device, the power generation arrangement of problem that occurs when stopping etc. and the method for operation of this device.
In order to achieve the above object, following technological means is adopted in the present invention.
Power generation arrangement of the present invention is made up of rotating machinery driving source and heat engine, and described rotating machinery driving source produces rotary driving force to rotating machinery, and described heat engine is configured to act synergistically with above-mentioned rotating machinery driving source and drive above-mentioned rotating machinery; Here, above-mentioned heat engine possesses decompressor, and described decompressor makes the action media expansion of gasification and produces rotary driving force; Above-mentioned decompressor is provided with bypass pipe arrangement, and the action medium inlet of above-mentioned decompressor is communicated with action media outlet by described bypass pipe arrangement; Above-mentioned bypass pipe arrangement possesses open and close valve, and described open and close valve is by the opening and closing of above-mentioned bypass pipe arrangement.
According to said structure, by above-mentioned open and close valve temporarily being opened when the starting of above-mentioned rotating machinery or when stopping etc., the problem occurred when reliably can to avoid when the starting of device or to stop etc.
In the power generation arrangement of said structure, Ke Yishi, above-mentioned power generation arrangement possesses control gear, and described control gear controls the opening and closing of above-mentioned open and close valve; Above-mentioned control gear controls when above-mentioned rotating machinery driving source and above-mentioned heat engine being started, after flowing into above-mentioned bypass pipe arrangement to make action medium being opened by above-mentioned open and close valve, above-mentioned rotating machinery driving source is started, when the action medium being judged as flowing into above-mentioned decompressor is vaporized, above-mentioned open and close valve is closed.
In the power generation arrangement of said structure, also can be, above-mentioned power generation arrangement possesses suction pressure detector, and described suction pressure detector detects the suction pressure of above-mentioned decompressor; Above-mentioned control gear, when the force value detected by above-mentioned suction pressure detector is more than the force value of regulation, is judged as that the action medium flowed into above-mentioned decompressor is vaporized.
Or, in the power generation arrangement of said structure, also can be, above-mentioned power generation arrangement possesses suction pressure detector and the pressure detector that spues, described suction pressure detector detects the suction pressure of above-mentioned decompressor, described in the pressure detector that spues detect the pressure that spues of above-mentioned decompressor; Above-mentioned control gear, when the force value detected by above-mentioned suction pressure detector becomes more than the value of regulation with the difference of the force value detected by the above-mentioned pressure detector that spues, is judged as that the action medium flowed into above-mentioned decompressor is vaporized.
Or in the power generation arrangement of said structure, also can be, above-mentioned rotating machinery be gas compressor; Above-mentioned power generation arrangement possesses Temperature Detector, and described Temperature Detector detects the effluent air temp of above-mentioned gas compressor; Above-mentioned control gear, when the temperature value detected by said temperature detector becomes more than the temperature value of regulation, is judged as that the action medium flowed into above-mentioned decompressor is vaporized.
Or in the power generation arrangement of said structure, above-mentioned control gear possesses time measurement device, described time measurement device was measured from above-mentioned rotating machinery driving source by the transit time starting; Above-mentioned control gear, when the transit time detected by above-mentioned time measurement device becomes more than scheduled time, is judged as that the action medium flowed into above-mentioned decompressor is vaporized.
In addition, in the power generation arrangement of said structure, Ke Yishi, above-mentioned power generation arrangement possesses control gear, and described control gear controls the opening and closing of above-mentioned open and close valve; Above-mentioned control gear, when above-mentioned rotating machinery driving source and above-mentioned heat engine being stopped, controlling, to be opened by above-mentioned open and close valve, action medium is flowed into above-mentioned bypass pipe arrangement, the driving of above-mentioned decompressor is stopped.
In addition, in the power generation arrangement of said structure, Ke Yishi, above-mentioned power generation arrangement possesses control gear, and described control gear controls the opening and closing of above-mentioned open and close valve; Above-mentioned control gear is under above-mentioned rotating machinery driving source and above-mentioned heat engine carry out the situation of steady running, when above-mentioned rotating machinery driving source stops, controlling, so that above-mentioned open and close valve is opened, action medium is flowed into above-mentioned bypass pipe arrangement, the driving of above-mentioned decompressor is stopped.
In addition, in the power generation arrangement of said structure, also can be that above-mentioned rotating machinery is the compressor of high pressure by the gas compression be supplied to, and above-mentioned rotating machinery driving source is motor; The hotwork using the pressurized gas generated by above-mentioned compressor to have is the thermal source to action medium in the vaporizer of above-mentioned heat engine.
In addition, in the power generation arrangement of said structure, also can be that above-mentioned rotating machinery driving source is the 2nd decompressor, described 2nd decompressor be expanded by the heat medium be made up of steam and produces power; The vaporizer of above-mentioned heat engine with by the heat medium after above-mentioned 2nd expander by above-mentioned action dielectric heating, be vaporized.
In this approach, the heat medium before vaporizer imports expands in the 2nd decompressor, so pressurization step-down compared with structure in the past of heat medium when importing to vaporizer.Therefore, it is possible to be reduced in the strain occurred in the component parts of vaporizer, the burden of vaporizer can be alleviated.Further, because the 2nd decompressor is connected on the running shaft of the rotor part being provided with whirler, so in the 2nd decompressor, the driving-energy of the energy of heat medium as rotor part can be taken out.Thus, the energy of heat medium can be utilized without waste, so the performance as whirler drive system can be improved.That is, become and in the 2nd decompressor, utilize the pressure of heat medium and the structure of the temperature of the heat medium utilizing pressure to be lowered in vaporizer, thus, the energy Ratios that heat medium has can be utilized more expeditiously in the past.
In addition, in the power generation arrangement of said structure, also can be, have: the connecting part being connected to the 1st axle portion on the running shaft of above-mentioned heat engine, being connected to the 2nd axle portion on the running shaft of above-mentioned 2nd decompressor and above-mentioned 1st axle portion being combined with above-mentioned 2nd axle portion with transmission of drive force; Above-mentioned connecting part is made up of the speed change agency converting rotating speed between above-mentioned 1st axle portion and above-mentioned 2nd axle portion.
In addition, in the power generation arrangement of said structure, also can be, to the bearing of the running shaft of above-mentioned 2nd decompressor, to supply in the condenser of above-mentioned heat engine used water as oiling agent or in the vaporizer of above-mentioned heat engine from the water of above-mentioned steam-condensation.
In addition, in the power generation arrangement of said structure, also can be, have: the connecting part being connected to the 1st axle portion on the running shaft of above-mentioned heat engine, being connected to the 2nd axle portion on the running shaft of above-mentioned rotating machinery driving source and above-mentioned 1st axle portion being combined with above-mentioned 2nd axle portion with transmission of drive force; At least one party in above-mentioned 1st axle portion and above-mentioned 2nd axle portion is housed in obturator; Above-mentioned connecting part is made up of the magnetic coupler closed in above-mentioned 1st axle portion and above-mentioned 2nd axle portion magnetic knot.
And then, the present invention is the method for operation of the power generation arrangement of said structure, when above-mentioned heat engine and above-mentioned rotating machinery driving source are started, make above-mentioned action medium flow into above-mentioned bypass pipe arrangement being opened by above-mentioned open and close valve after, above-mentioned heat engine and above-mentioned rotating machinery driving source are started, if be judged as that the action medium flowed into above-mentioned decompressor is vaporized, then the open and close valve of above-mentioned bypass pipe arrangement is closed; When above-mentioned heat engine and above-mentioned rotating machinery driving source are stopped, above-mentioned open and close valve is opened, above-mentioned action medium is flowed into above-mentioned bypass pipe arrangement, the driving of above-mentioned decompressor is stopped.
Or, in the method for operation of the power generation arrangement of said structure, under above-mentioned rotating machinery driving source carries out the situation of steady running, when above-mentioned rotating machinery driving source stops, above-mentioned open and close valve is opened, above-mentioned action medium is flowed into above-mentioned bypass pipe arrangement, the driving of above-mentioned decompressor is stopped.
Accompanying drawing explanation
Fig. 1 is the figure of the structure of the power generation arrangement roughly representing the 1st mode of execution for the present invention.
Fig. 2 is the stereogram of the magnetic coupler represented in the power generation arrangement being located at the 1st mode of execution.
Fig. 3 is the flow chart of the method for operation of the power generation arrangement representing the 1st mode of execution.
Fig. 4 is the figure of the structure of the power generation arrangement roughly representing the 2nd mode of execution for the present invention.
Fig. 5 is the figure of the structure of the power generation arrangement roughly representing the 3rd mode of execution for the present invention.
Fig. 6 is the figure of the structure of the power generation arrangement roughly representing the 4th mode of execution for the present invention.
Fig. 7 is the figure of the structure of the power generation arrangement roughly representing the 5th mode of execution for the present invention.
Fig. 8 is the figure of the structure of the power generation arrangement roughly representing the 6th mode of execution for the present invention.
Fig. 9 is the figure of the structure of the power generation arrangement roughly representing the 7th mode of execution for the present invention.
Embodiment
［ the 1st mode of execution ］
Below, the 1st mode of execution of power generation arrangement 100 for the present invention is described based on accompanying drawing.
As shown in Figure 1, the power generation arrangement 100 of the 1st mode of execution has auxiliary power generation device 1 and drives these two power of the motor 53 of rotating machinery 11 to produce source.Auxiliary power generation device 1 has heat engine 4 and power transmission shaft 6, the drive portion 2(that described heat engine 4 possesses the expansion rotary actuation of the steam had by action medium T is screw rotor 2 in the present embodiment) decompressor 3, the outside of the rotary driving force produced by this decompressor 3 to the housing 5 of accommodating decompressor 3 is taken out by described power transmission shaft 6.
This housing 5 contains the drive portion 2 of decompressor 3 in the inside surrounded by next door 7.Be split into the live axle 8 being positioned at housing 5 and the driven shaft 9 be positioned at outside housing 5 across next door 7 in the middle of power transmission shaft 6.In addition, on power transmission shaft 6 after singulation, i.e. live axle 8 and driven shaft 9, magnetic coupler 10 is provided with in order to be transmitted to the outside of housing 5 by the rotary driving force of decompressor 3.
Like this, auxiliary power generation device 1 is consisted of the power transmission shaft 6 that formed by live axle 8 and driven shaft 9 and magnetic coupler 10, for being transmitted to the outside of housing 5 by rotary driving force by power transmission shaft 6 and the structure transmitting to the rotating machinery 11 arranged in addition with heat engine 4, utilize as the auxiliary power of this rotating machinery 11.
The invention relates to the technology can avoiding the problem occurred when above-mentioned auxiliary power generation device 1 is started or stopped, before this, the rotating machinery 11 of auxiliary power generation device 1, this auxiliary power generation device 1 power-assisted being described.
First, the object of auxiliary power is supplied to power generation arrangement 1 and rotating machinery 11 explains.
As the rotating machinery 11 of the 1st mode of execution, adopt " gas compressor " of the gas V boil down to high pressure be supplied to.
As shown in Figure 1, gas compressor 50 is oilless multistage gas compressors, described oilless multistage gas compressors possesses multiple compressing mechanisms (first order compressing mechanism 51, high stage compressor structure 52) that axle is connected in series and the motor 53 driving the plurality of compressing mechanism, and does not use lubricant oil.The motor 53 producing driving force is electric motors.In such gas compressor 50, the gas V imported from outside is become the gas V of high pressure by first order compressing mechanism adiabatic compression, carried by high stage compressor structure.The gas V of the high pressure be transferred is become the gas V of high pressure by the further adiabatic compression of high stage compressor structure.Now, the gas V of generation is warmed and has a large amount of heat.The gas V of the high pressure generated like this is cooled to the temperature needed according to application target by cooling unit such as cooler 54 grade.
Above-described gas compressor 50(rotating machinery 11) provide to user as an assembly, there is motor 53, can with monomer whose work (active rotating machinery).The auxiliary power generation device 1 of present embodiment is additionally installed this gas compressor 50, carries out power-assisted to gas compressor 50.
On the other hand, the heat engine 4 possessed in the auxiliary power generation device 1 of the 1st mode of execution is explained.
As the heat engine 4 possessed in the auxiliary power generation device 1 of the 1st mode of execution, illustrate binary cycle machine.
As shown in Figure 1, binary cycle machine 4 is equipped on circulation pipe arrangement, described circulation pipe arrangement by the vaporizer 13 that the action medium T of liquid is evaporated, the steam expansion making the action medium T of being evaporated by this vaporizer 13 and make drive portion 2(such as screw rotor 2 described later) decompressor 3 of rotary actuation; Make the steam-condensation of the action medium T after being expanded by this decompressor 3 and be changed to the condenser 12 of the action medium T of liquid and pass through the medium circulation pump 14 that the action medium T by the condensed liquid of this condenser 12 makes action medium T circulate to vaporizer 13 force feed to be formed by connecting with loop-like.
Decompressor 3 has the screw rotor 2(drive portion 2 of the pressure difference rotary actuation utilizing the steam before and after expanding).Screw rotor 2 is rotatable centered by live axle 8, the rotary driving force of generation can be transmitted to the magnetic coupler 10 be connected on this live axle 8 via live axle 8.
Housing 5(next door 7 is provided with around the screw rotor (drive portion) 2 of decompressor 3), can be isolated inside and outside airtightly by this housing 5.At this by the inside of housing 5 isolated airtightly, contain the action medium T of the low boiling point working medium used by binary cycle machine 4 together with screw rotor 2.
Between above-mentioned decompressor 3 and gas compressor 50, be equipped with the power transmission mechanism transmitted to gas compressor 50 by the rotary driving force that the screw rotor 2 by decompressor 3 produces.
Power transmission mechanism possesses the power transmission shaft 6 that centre is split into live axle 8 and driven shaft 9 across next door 7, the magnetic coupler 10(reference Fig. 2 linked by this diaxon magnetic be divided into across next door 7 inside and outside housing 5 in addition), possess the power transfer path 15 with these power transmission shafts 6 and magnetic coupler 10.
Further, the rotary driving force taken out via magnetic coupler 10 being transmitted to the power-actuated gas compressor 50 by the driving source 16 arranged in addition with above-mentioned binary cycle machine 4, being used in for driving in the auxiliary power of this gas compressor 50.
In addition, in the power transfer path 15 that the rotary driving force taken out via magnetic coupler 10 is passed, be provided with the rotational speed speed change of power transmission shaft 6 and the speed changer 17 that auxiliary power is transmitted to downstream side and the clutch mechanism 18 controlled to the transmit mode of the auxiliary power of gas compressor 50.
Then, to forming the power transmission shaft 6 of auxiliary power generation device 1, magnetic coupler 10 is described.
As shown in Figure 1, power transmission shaft 6 is split into live axle 8 and driven shaft 9 across the next door 7 of housing 5.Live axle 8 as one of power transmission shaft 6 is the running shafts be equipped with along the axis of rotation of the screw rotor 2 of decompressor 3.One end (right side of Fig. 1) of live axle 8 is attached on the screw rotor 2 as the drive portion 2 of decompressor 3, the other end (left side of Fig. 1) is elongated near next door 7, and the front end of this another side is provided with the outer cylinder body 20 of the magnetic coupler 10 being installed with driving side magnet.
On the other hand, the driven shaft 9 as one of power transmission shaft 6 is the axles that can rotate be equipped with along the direction coaxial with live axle 8.One end (right side of Fig. 1) of driven shaft 9 is extended towards decompressor 3 side, and this one end is provided with the interpolation body 22 being installed with slave end magnet, and the other end (left side of Fig. 1) is connected on speed changer 17 described later.
As shown in Figure 1 and Figure 2, magnetic coupler 10 is made up of the outer cylinder body 20 be located on live axle 8 and the interpolation body 22 be located on driven shaft 9.
Outer cylinder body 20 is towards the parts of the bottomed cylindrical of gas compressor 50 side (with screw rotor 2 side opposition side) opening, is formed by nonmagnetic material.Outer cylinder body 20 links live axle 8 with coaxial, in addition, in the part that it is formed as cylindric, is provided with two the driving side magnet leaving outfit in the circumferential in mutually opposing mode.
Interpolation body 22 is cylindrical bodys, and outer cylinder body 20 is formed by nonmagnetic material equally.Interpolation body 22 can loosen the inner side of intercalation at outer cylinder body 20, and the outer circumferential face (being inserted in the outer circumferential face of the part of the inner side of outer cylinder body 20) of interpolation body 22 is provided with the slave end magnet 26 of the quantity corresponding with driving side magnet 25.In addition, the quantity of the driving side magnet 25 of magnetic coupler and the respective magnet of slave end magnet 26 is not limited to two, also can be more than it.
These driving side magnet 25 and slave end magnet 26 mutually make different magnetic pole strengths to and be equipped with, between two magnet 25,26, cause magnetic pull through next door 7, the rotary driving force of live axle 8 can be transmitted to driven shaft 9.
The structure of auxiliary power generation device 1 of the present invention is illustrated successively, then the vaporizer 13 possessed in binary cycle machine 4 is described.
The vaporizer 13 possessed in the binary cycle machine 4 of the 1st mode of execution, in order to the heat produced by gas compressor 50 can be utilized as the thermal source making action medium T gasify, possesses two or more (being the 1st vaporizer 56, the 2nd vaporizer 57 in FIG) in the downstream side of medium circulation pump 14.
These the 1st vaporizers 56 and the 2nd vaporizer 57 are provided on circulation pipe arrangement 55 side by side.The 1st vaporizer 56, the 2nd vaporizer 57 enter side, respectively connected the pipe arrangement from the circulation pipe arrangement 55 in the downstream side being connected to medium circulation pump 14 branch side by side.Be connected to the circulation pipe arrangement 55 of the upstream side of decompressor 3 from the pipe arrangement going out side extension of the 1st vaporizer 56, the 2nd vaporizer 57.
In the 1st vaporizer 56, flowed into by the gas V of the high pressure after first order compressing mechanism 51 adiabatic compression of gas compressor 50, the heat of the gas V of high pressure and the heat exchange of action medium T.The gas V of the high pressure after heat exchange is carried to high stage compressor structure 52.
In the 2nd vaporizer 57, flowed into by the gas V of the high pressure after high stage compressor structure 52 adiabatic compression, the heat of the gas V of high pressure and the heat exchange of action medium T.The gas V of the high pressure after heat exchange is by cooler 54(cooling unit) conveying, the temperature of needs is cooled to according to application target.
The action medium T of the gas of such generation is carried by decompressor 3 through the circulation pipe arrangement 55 going out side being connected to the 1st vaporizer 56 and the 2nd vaporizer 57.
, being connected to the going out between the circulation pipe arrangement 55 of side and decompressor 3 of the 1st vaporizer 56 and the 2nd vaporizer 57, bypass pipe arrangement 63(tortuous flow passage is equipped with).
This bypass pipe arrangement 63 arranges, by the outlet of the entrance of decompressor 3 and decompressor 3.On this bypass pipe arrangement 63, possesses the open and close valve 64 of the circulation status switched in this bypass pipe arrangement 63.According to the operational situation of auxiliary power generation device 1, open and close valve 64 is opened, is closed, and can carry out the circulation of action medium T or the circulation of action medium T be cut off.
By utilizing this bypass pipe arrangement 63, the problem occurred when auxiliary power generation device 1 is started or stopped can being avoided, but its details is aftermentioned.
Below, with reference to accompanying drawing, be described about the action when manner of execution of the auxiliary power generation device 1 about the 1st mode of execution, particularly steady running.
As shown in Figure 1, in the 1st vaporizer 56, utilize the heat (heat exchange) of the gas V of the high pressure generated by first order compressing mechanism 51, the action medium T of liquid is gasified, the action medium T of generating steam.In addition, in the 2nd vaporizer 57, same with the 1st vaporizer 56, utilize the heat (heat exchange) of the gas V of the high pressure generated by high stage compressor structure 52, the action medium T of liquid is gasified, the action medium T of generating steam.The action medium T of the steam of such generation is carried by decompressor 3 through the circulation pipe arrangement 55 going out side being connected to the 1st vaporizer 56 and the 2nd vaporizer 57.
In decompressor 3, the steam expansion of the action medium T generated by the 1st vaporizer 56 and the 2nd vaporizer 57, utilizes the pressure difference of the action medium T before and after expanding, drive portion 2 rotary actuation.
The steam of the action medium T of the low pressure used in decompressor 3 is sent by condenser 12 through the circulation pipe arrangement 55 going out side of decompressor 3.In condenser 12, the steam of the action medium T sent out from decompressor 3 and cooling water W heat exchange, be condensed into the action medium T of liquid.
The action medium T becoming liquid is within the condenser sent by medium circulation pump 14.The action medium T of this liquid is boosted by medium circulation pump 14, through circulation pipe arrangement 55 by two vaporizers 56,57 force feed again.
On the other hand, the rotary driving force produced by decompressor 3 is fetched to the outside of housing 5 rotary driving force via magnetic coupler 10 is delivered to speed changer 17 at first via the driven shaft 9 be attached on magnetic coupler 10.
After being the rotational speed of the most applicable propellant compressor 50 by speed changer 17 speed change, the rotary driving force after speed change being transmitted via the motor 53 of clutch mechanism 18 to gas compressor 50, carries out power-assisted.
But, when running auxiliary power generation device 1, following such problem can be expected.
Such as, when supplying electric power to the gas compressor 50 of halted state, again starting (startings), likely there is below such undesirable condition.
If supply electric power to the gas compressor 50 of halted state and motor 53 starts to rotate, then motor 53 drives compressing mechanism 51,52.Now, in auxiliary power generation device 1 i.e. binary cycle, be used for driving the heat of decompressor 3 not to be supplied to vaporizer 13, the action medium T of liquid is at circulation pipe arrangement 55 Inner eycle.The action medium T of liquid not only can not drive decompressor 3, and decompressor 3(that the motor 53 of gas compressor 50 makes the action medium T of liquid flow into occurs as load effect) situation that rotates.That is, the motor 53 of gas compressor 50 will make both rotations of compressing mechanism 51,52 and decompressor 3, and the load additional very large to this motor 53, the startup of device entirety is slack-off.
But, in the present embodiment, by the method for operation adopting Fig. 3 such, avoid this problem.
That is, in the auxiliary power generation device 1 about the 1st mode of execution, when the starting of gas compressor 50, open and close valve 64 is opened (S101, S102 of Fig. 3).By circulating in bypass pipe arrangement 63 like this, make the action medium T of liquid condition enter branch in front of side at decompressor 3, flow into decompressor 3 hardly.So decompressor 3 becomes idle running state, avoid above-mentioned undesirable condition.
Then, gas compressor 50 becomes steady running, is discharged by pressurized gas V.The heat that these pressurized gas V has makes action medium T evaporate via vaporizer 13.Measure the suction pressure of decompressor 3 or the rejection temperature of the suction side of decompressor 3 and the pressure difference of exhaust end or gas compressor 50, if confirm that this measured value is more than the value of regulation (S103 of Fig. 3), then the open and close valve 64 of bypass pipe arrangement 63 is closed (S104 of Fig. 3).Whole action medium of gasification flow in decompressor 3, and auxiliary power generation device 1 becomes steady running.In addition, in S103, also can judge whether the running time of gas compressor 50 becomes more than certain hour, if become more than certain hour, then advance to S104.Here, the value of afore mentioned rules and certain hour are set as regarding the value that the action medium flowed into decompressor becomes the state of gasification as.
As shown in Figure 1, as the apparatus structure being used for realizing above-mentioned method of operation, about the power generation arrangement 100 of the 1st mode of execution has control gear 70.And then, use in S103 when the suction pressure of decompressor 3 and suction pressure detector Ps is set, use in S103 when the pressure difference of the suction side of decompressor 3 and exhaust end and suction pressure detector Ps and the pressure detector Pd that spues is set, use in S103 when the rejection temperature of gas compressor 50 and Temperature Detector T is set.In the form of Fig. 1, the gas temperature that spues of the first order compressing mechanism 51 of measurement gas compressor 50, but also can for and measure the gas temperature that spues of high stage compressor structure 52.
When automatically open and close valve 64 is opened when the starting of gas compressor 50, after a certain time automatic the mode that open and close valve 64 is closed is operated, control gear 70 have measure from gas compressor 50 by start transit time time measurement device 71 and form.
Differentiation in S103 also only can use one in above-mentioned 4 method of discrimination.Or, also multiple method of discrimination can be combined, carry out controlling to be opened by open and close valve 64 when method of discrimination whole used become the condition opened by open and close valve 64.
The opening and closing of open and close valve 64 also can not use control gear 70, and is undertaken by the manually-operable of operator.
Then, the running of the auxiliary power generation device 1 during stopping to gas compressor 50 is described.After the firm stopping of gas compressor 50, the action medium T of steam continues to flow into through the decompressor 3 of circulation pipe arrangement 55 to auxiliary power generation device 1.In this case, decompressor 3 motor 53 except the compressing mechanism 51,52 of gas compressor 50 also drives, and becomes overload state.When excess load becomes very large, being present in magnetic coupler 10 between decompressor 3 and motor 53 can not transferring power and become idling conditions, and on the contrary, decompressor 3 is likely zero load and excessive rotation also.
But, about the auxiliary power generation device 1 of the 1st mode of execution is when such stopping, by open and close valve 64 is opened (S201 of Fig. 3), bypass pipe arrangement 63 can be circulated, suppresses action medium to the inflow of decompressor 3.As a result, the driving of decompressor 3 stops.Then, the driving of the motor 53 of gas compressor 50 stops, and the driving of compressing mechanism 51,52 also stops (S202 of Fig. 3).So, reliably avoid above-mentioned undesirable condition.In addition, the action of open and close valve 64 being opened and by the driving of motor 53 stop action also can carry out simultaneously.Running about the auxiliary power generation device 1 during following power failure is also same.
In gas compressor 50, have because of unexpected power failure etc. and do not resupply the situation of electric power when steady running.In the decompressor 3 of auxiliary power generation device 1, because the action medium T of steam continues to flow into through circulation pipe arrangement 55, so decompressor 3 was communicated with and has a power failure and the compressing mechanism 51,52 of gas compressor 50 that stops and motor 53 all drive, became overload state.When excess load becomes very large, being present in magnetic coupler 10 between decompressor 3 and motor 53 can not transferring power and become idling conditions, and on the contrary, decompressor 3 is likely zero load and excessive rotation also.
But about the auxiliary power generation device 1 of the 1st mode of execution is when such power failure, make bypass pipe arrangement 63 become circulation status by open and close valve 64 is opened (S201 of Fig. 3), suppress action medium to the inflow of decompressor 3, the driving of decompressor 3 stops.Then, the driving of the motor 53 of gas compressor 50 stops, and the driving of compressing mechanism 51,52 also stops (S202 of Fig. 3).So, reliably avoid above-mentioned undesirable condition.
When by above-mentioned open and close valve 64 opening and closing, also can being undertaken by the manually-operable of operator, but also automatically can detect power failure, automatically open and close valve 64 being opened when power failure being detected.
［ the 2nd mode of execution ］
Then, be described based on the 2nd mode of execution of accompanying drawing to power generation arrangement 100 of the present invention.
As shown in Figure 4, the structure about the auxiliary power generation device 1 of the 2nd mode of execution is different from the 1st mode of execution on following point.
That is, in the binary cycle machine 4 of the 2nd mode of execution, the thermal source that action medium T is gasified is by different from outside supply this point.In other words, the heat produced by rotating machinery 11 is not utilized (recovery) as the thermal source making action medium T gasify.Like this, the auxiliary power generation device 1 of the 2nd mode of execution possesses the binary cycle machine 4 of simple apparatus structure.In addition, in rotating machinery 11, also can use the various rotating machinery such as motor or compressor.
But, arrange by the entrance of decompressor 3 and the bypass pipe arrangement 63 of outlet, possess on this bypass pipe arrangement 63 circulation of action medium T is opened, open and close valve 64 this point of closing and the 1st mode of execution roughly the same.
In this auxiliary power generation device 1, i.e. binary cycle machine 4, also have when to describe such starting in the 1st mode of execution or the time of stopping, the situation of undesirable condition occurred.
If this situation, also by using decompressor 3 entered going out bypass pipe arrangement 63 that side links, operating based on the flow chart that Fig. 3 is such of side and decompressor 3, even the device of the 2nd mode of execution, the problem that also can reliably avoid when starting, the time of stopping etc. occurring.
In addition, because other structures of the 2nd mode of execution, the action effect that plays are roughly the same with the 1st mode of execution, omit so it illustrates.In addition, in the diagram, the diagram of control gear and various detector is omitted.
［ variation ］
In the device 100 of above-described 1st mode of execution, the 2nd mode of execution, malformation can be made as follows.
Such as, in the 1st mode of execution, the heat using the pressurized gas V generated by gas compressor 50 to have is as the thermal source of binary cycle machine 4, but when adopting water-cooled motor (internal-combustion engine) in rotating machinery 11, the thermal source as binary cycle machine 4 also can use the cooling water of engine cooling.
In addition, by as in auxiliary power generation device 1 be equipped with clutch mechanism 18 and adopt air clutch, also can avoid have a power failure time or start time undesirable condition.
That is, also can use air clutch in clutch mechanism 18, a part of the gas V after being compressed by gas compressor 50 is guided to air clutch.
Such as, when the gas compressor 50 because of unexpected power failure etc. in steady running stops, the gas V(not resupplying high pressure is only the gas V of low pressure), air clutch becomes non-action, and the decompressor 3 of auxiliary power generation device 1 and the motor 53 of gas compressor 50 automatically become non-interlock.Therefore, it is possible to the generation of undesirable condition when reliably avoiding above-mentioned power failure.When the steady running of gas compressor 50, owing to being supplied to the gas V of high pressure, so air clutch becomes operating state.
The action of such air clutch occurs too when being started by gas compressor 50.Namely, when starting, the gas V of low pressure is not only by the gas V(supplying high pressure from gas compressor 50), air clutch becomes non-action, and the decompressor 3 of auxiliary power generation device 1 and the motor 53 of gas compressor 50 automatically become non-interlock in certain hour.Therefore, it is possible to the generation of undesirable condition when reliably avoiding above-mentioned starting.
［ the 3rd mode of execution ］
Fig. 5 represents the structure of the power generation arrangement of the 3rd mode of execution.Specifically, this power generation arrangement possesses the circulation loop 110 of the binary cycle machine as action medium circulation, generator 120 as whirler, heat medium loop 130 and carries out the control device 150 of various control.In addition, in circulation loop 110, action medium (such as HFC245fa) circulation lower than water boiling point.
Circulation loop 110 is the loop circuits of action medium pump 115 being connected in series the vaporizer 111 that action medium is gasified, making to be in the 1st decompressor 113 of the action media expansion of gaseous state, make the condenser 114 of the action medium condenses after being expanded by the 1st decompressor 113 and will be carried to vaporizer 111 by the condensed action medium of condenser 114.
Vaporizer 111 makes liquid action medium gasification.Vaporizer 111 has the action medium stream 111a of action media flow and the heat medium stream 111b of heat medium flowing.Heat medium stream 111b is connected on heat medium loop 130 as described later, and heat medium flows.The action medium flowed in action medium stream 111a and the heat medium heat exchange of flowing in heat medium stream 111b and evaporate.
1st decompressor 113 is located at the downstream side of the vaporizer 111 in circulation loop 110, by making the action media expansion after being evaporated by vaporizer 111, takes out kinetic energy from this action medium.In the present embodiment, screw expander is used as the 1st decompressor 113.In screw expander, in the rotor chamber (not shown) in the housing 113a being formed in the 1st decompressor 113, accommodate negative and positive a pair screw rotor 113b.In this screw expander, by being supplied to the expansive force of the action medium in above-mentioned rotor chamber from the intakeport be formed on housing 113a, screw rotor 113b rotates.Then, the action medium by expanding in above-mentioned rotor chamber after pressure drop is discharged by from the exhaust port be formed on housing 113a.In addition, the 1st decompressor 113 is not limited to screw expander, also can be made up of decompressor of Scroll-type etc., other decompressor.
Condenser 114 makes the action medium condenses of the gaseous state of discharging from the 1st decompressor 113 and becomes liquid action medium.Condenser 114 has the action medium stream 114a of the action media flow of gaseous state and the cooling medium stream 114b of cooling medium flowing.Cooling medium stream 114b is connected on cooling medium loop 117, in this cooling medium loop 117, from the cooling medium flowing of outside supply.As cooling medium, can enumerate such as by the cooled cooling water of cooling tower.The action medium flowed in action medium stream 114a is by with the cooling medium heat exchange of flowing in cooling medium stream 114b and condensation.
Action medium pump 115 is used for making action medium circulation in circulation loop 110, is located at the downstream side (between vaporizer 111 and condenser 114) of the condenser 114 in circulation loop 110.Action medium by the condensed liquid state of condenser 114 is pressurized to the pressure of regulation by this action medium pump 115, sends to vaporizer 111.As action medium pump 115, use the gear pump etc. possessing impeller and be made up of a pair gear as the centrifugal pump of rotor or rotor.This action medium pump 115 can drive with arbitrary rotating speed.
Generator 120 has rotor part 120a, and this rotor part 120a is located at the intermediate portion of the running shaft 123 on the side in the screw rotor 113b being connected to the 1st decompressor.If expanded and drive screw rotor 113b in the 1st decompressor 113 by action medium, then running shaft 123 rotates.Thereupon, rotor part 120a rotates.Rotated along with the rotation of running shaft 123 by rotor part 120a, generator 120 produces electric power.In the present embodiment, IPM generator (permanent magnet synchronous generator) is used as generator 120.Generator 120 can carry out adjustment of rotational speed by diagram abridged inverter.Control device 150, to diagram abridged inverter output speed adjustment signal, to adjust the rotating speed of generator 120, uprises to make the generating efficiency of generator 120 as far as possible.In addition, generator 120 is not limited to IPM generator, also can be the generator of the other types such as such as influence generator.
Circulation loop 110 is provided with bypass 125.On bypass 125, be provided with the bypass valve 125a be made up of open and close valve, bypass 125 is by open by bypass valve 125a, and action medium is walked around the 1st decompressor 113 and flows in circulation loop 110.One end of bypass 125 is connected on the pipe arrangement between vaporizer 111 in circulation loop 110 and the 1st decompressor 113, and the other end of bypass 125 is connected on the pipe arrangement between the 1st decompressor 113 in circulation loop 110 and condenser 114.
Heat medium loop 130 can be connected to outside medium channel 135 and form, and in heat medium loop 130, is imported heat medium by the medium channel 135 from this outside.An end (upstream end thereof) in heat medium loop 130 is provided with the 2nd decompressor 140.In the 2nd decompressor 140, be imported into the heat medium that the medium channel 135 through outside supplies, the 2nd decompressor 140 expands by making this heat medium, takes out kinetic energy from this heat medium.In the present embodiment, use screw expander as the 2nd decompressor 140, but also can use the other forms of decompressors such as the decompressor of Scroll-type.
As the heat medium supplied to heat medium loop 130, except the steam such as taked from mine pit (steam well), the steam of discharging from factory etc., the steam etc. steam that the heat collector by taking solar energy as thermal source generates or the steam generated from the heat extraction of motor, compressor etc. can also be enumerated, generating from the boiler being thermal source with biomass or fossil fuel.The heat medium imported to the 2nd decompressor 140 is such as 120 DEG C ~ 250 DEG C.
2nd decompressor 140 is connected on above-mentioned running shaft 123.That is, the side in the screw rotor 140a of the 2nd decompressor 140 is connected to running shaft 123.If expanded and drive screw rotor 140a in the 2nd decompressor 140 by heat medium, then running shaft 123 rotates.
Heat medium loop 130 is connected to the heat medium stream 111b of vaporizer 111.Thus, in the heat medium stream 111b of vaporizer 111, the heat medium flowing after being expanded by the 2nd decompressor 140.
In circulation loop 110, be provided with into side pressure sensor Ps and back pressure sensor Pd.Enter side pressure sensor Ps be located at form circulation loop 110 pipe arrangement in vaporizer 111 and the 1st decompressor 113 between pipe arrangement on.Back pressure sensor Pd be located at form circulation loop 110 pipe arrangement in the 1st decompressor 113 and condenser 114 between pipe arrangement on.
Control device 150 possesses ROM, RAM, CPU etc., by performing the program be stored in ROM, plays the function of regulation.In the function of this control device 150, comprise pump control device 151 and open and close controlling portion 152.
The rotating speed that pump control device 151 carries out action medium pump 115 controls.Action medium pump 115 is the structure of carrying out rotating speed control by diagram abridged inverter, so pump control device 151 carries out action medium pump 115 rotating speed by transmitting control signal to inverter controls.
Open and close controlling portion 152 when than the 1st decompressor 113 by action media drive before the 2nd decompressor 140 driven state time, carry out control open for bypass valve 125a.Such as, when starting, before the 1st decompressor 113 is by action media drive, the driving of the 2nd decompressor 140 is started by heat medium.That is, in vaporizer 111, be the structure that the action dielectric heating flowed in action medium stream 111a makes it evaporate by the heat medium by flowing in heat medium stream 111b.Therefore, playing till the time to a certain degree from becoming the state that heat medium flows heat medium loop 130, in the 1st decompressor 113, being not necessarily imported into the action medium becoming steam.Now, being started to import to the 1st decompressor 113 to not having the wet steam of change, generator 120 and the 1st decompressor 113 is driven by the 2nd decompressor 140.Therefore, if be imported into liquid action medium in the 1st decompressor 113, then the load of the 2nd decompressor 140 increases.So, by bypass valve 125a is open when starting etc., make the screw rotor 113b of the 1st decompressor 113 become the state of idle running.
If open and close controlling portion 152 receives the starting order of action medium pump 115, then carry out the open control of bypass valve 125a, then, if reach according to the pressure difference that the checkout value of the checkout value and back pressure sensor Pd that enter side pressure sensor Ps obtains the threshold value preset, then carry out the control of being closed by bypass valve 125a.The threshold value of this pressure difference is set as that action medium fully evaporates in vaporizer 111, can be judged as the pressure that the state of the 1st decompressor 113 can be driven such.
In addition, the open and close controlling of bypass valve 125a is not limited thereto.Such as, also back pressure sensor Pd can be omitted, if open and close controlling portion 152 receives the starting order of action medium pump 115, carry out the open control of bypass valve 125a, then, if the checkout value entering side pressure sensor Ps reaches the threshold value preset, then carry out the control of being closed by bypass valve 125a.In addition, also pressure transducer (the 2nd enters side pressure sensor and the 2nd back pressure sensor) can be set respectively in the entry side and the exit side of the 2nd decompressor 140, more than the threshold value preset when entering from the 2nd the pressure difference that side pressure sensor and the 2nd back pressure sensor obtain, and from when entering pressure difference that side pressure sensor Ps and back pressure sensor Pd obtains less than the threshold value preset, carry out the open control of bypass valve 125a, then, if reach more than the threshold value preset from entering the pressure difference that side pressure sensor Ps and back pressure sensor Pd obtains, then carry out the control of being closed by bypass valve 125a.In addition, also can omitting entering side pressure sensor Ps and back pressure sensor Pd, if the scheduled time through presetting after the starting order receiving action medium pump 115, then carrying out the control of being closed by bypass valve 125a.
Then, method of controlling operation during starting to the power generation arrangement about present embodiment is described.The flow process of the 1st mode of execution shown in basic procedure with Fig. 3 is same.But, in the present embodiment, have employed the method using the suction side of decompressor and the pressure difference of exhaust end.
When being started by power generation arrangement, first control device 150 receives starting order.If control device 150 receives starting order, then perform the control of being opened by bypass valve 125a.Now, in heat medium loop 130, imported heat medium by the medium channel 135 from outside.This heat medium is directed in the 2nd decompressor 140 and expands, and drives the 2nd decompressor 140 thus.By the driving of the 2nd decompressor 140, the rotor part 120a of generator 120 rotates, and generator 120 starts generating.By being expanded by the 2nd decompressor 140, post-decompression heat medium flows into the heat medium stream 111b of vaporizer 111.
On the other hand, in circulation loop 110, by receiving starting order, action medium pump 115 is started, and action medium starts flowing thus.In vaporizer 111, the heat medium of heat medium stream 111b is by the action dielectric heating of action medium stream 111a.In vaporizer 111, when starting, action medium not necessarily fully evaporates, and only evaporates at least partially.Therefore, liquid action medium also flows out from vaporizer 111, but is opened due to bypass valve 125a, so action medium is not flow into the 1st decompressor 113, and is to bypass the 1st decompressor 113 and is imported by condenser 114.Now, the screw rotor 113b of the 1st decompressor 113 is dallied by the rotation of running shaft 123.
Then, if the pressure difference obtained according to the checkout value of the checkout value and back pressure sensor Pd that enter side pressure sensor Ps reaches the threshold value preset, then open and close controlling portion 152 carries out the control of being closed by bypass valve 125a.Thus, the action medium after being gasified by vaporizer 111 is imported by the 1st decompressor 113, and the 1st decompressor 113 is by action media drive.Thus, by the rotor part 120a of the drive force generator 120 of the 1st decompressor and the 2nd decompressor 140.Usual running is become after this.
As described above, in the power generation arrangement of the 1st mode of execution, owing to being expanded in the 2nd decompressor 140 by the heat medium before importing to vaporizer 111, so pressure step-down compared with structure in the past of heat medium when being imported to vaporizer 111.Therefore, it is possible to be reduced in the strain occurred in the component parts of vaporizer 111, the burden of vaporizer 111 can be alleviated.Further, because the 2nd decompressor 140 is connected on the running shaft 123 of the rotor part 120a being provided with generator 120, so in the 2nd decompressor 140, the driving-energy of the energy of heat medium as rotor part 120a can be taken out.Thus, the energy of heat medium can be utilized without waste, so the performance as power generation arrangement can be improved.That is, become and utilize the pressure of heat medium and the structure of the temperature of the heat medium after utilizing pressure to be lowered in vaporizer 111 in the 2nd decompressor 140.Thus, the energy Ratios that heat medium has can be utilized in the past more expeditiously.
In addition, in the 3rd mode of execution, than the 1st decompressor 113 by action media drive before the 2nd decompressor 140 driven state time, bypass valve 25a is open.Thus, the screw rotor 113b of the 1st decompressor 113 becomes the state of idle running.Thus, in the driven situation of only the 2nd decompressor 140 in the 1st decompressor 113 be connected on generator 120 and the 2nd decompressor 140, the 1st decompressor 113 can be made not become load, can efficiently the energy of heat medium be taken out in the 2nd decompressor 140.
［ the 4th mode of execution ］
Fig. 6 represents the whirler drive system of the 4th mode of execution for the present invention.In addition, give identical reference character to the constituting component identical with the 3rd mode of execution here, omit its detailed description.
In the 3rd mode of execution, running shaft 123 is made up of a spindle unit.In contrast, in the 4th mode of execution, running shaft 123 is for being split into the 1st axle portion 123a and the 2nd axle portion 123b and having the structure of the connecting part 123c combined in the mode of transmission of drive force by these the 1st axle portion 123a and the 2nd axle portion 123b.
Connecting part 123c is made up of the speed change agency 161 converting rotating speed between the 1st axle portion 123a and the 2nd axle portion 123b.Speed change agency 161 has the 1st gear 161a that is connected on the 1st axle portion 123a and to be connected on the 2nd axle portion 123b and the 2nd gear 161b be engaged on the 1st gear 161a.In legend, be the structure that the number of teeth of gear ratio the 2nd gear 161b of the 1st gear 161a is many, but the structure that can alternatively adopt it contrary.In addition, in legend, for arranging the structure of generator 120 on the 1st axle portion 123a, but the structure that generator 120 is set on the 2nd axle portion 123b can also alternatively be adopted.
1st axle portion 123a at one end portion is connected on the 1st decompressor 113.The other end of 1st axle portion 123a combines the 1st gear 161a.2nd axle portion 123b at one end portion is connected on the 2nd decompressor 140.The other end of 2nd axle portion 123b combines the 2nd gear 161b.
In the 4th mode of execution, when the rotating speed of the 1st decompressor 113 is different from the rotating speed of the 2nd decompressor 140, can easily tackle.Namely, when the 1st decompressor 113 and the 2nd decompressor 140 by the decompressor of mutually different forms form such situation, rated speed different, by arranging speed change agency 161 between the 1st axle portion 123a and the 2nd axle portion 123b, can the speed discrepancy of easily both correspondences.
In addition, the description thereof will be omitted for other structure, function and effect, but be same with above-mentioned 3rd mode of execution.
［ the 5th mode of execution ］
Fig. 7 represents the power generation arrangement of the 5th mode of execution for the present invention.In addition, give identical reference character to the constituting component identical with the 3rd mode of execution here, omit its detailed description.
In the 4th mode of execution, connecting part 123c is made up of speed change agency 161.In contrast, in the 5th mode of execution, connecting part 123c is made up of the magnetic coupler 165 the 1st axle portion 123a and the 2nd axle portion 123b magnetic knot closed.The structure of magnetic coupler 165 is same with the structure of the 1st mode of execution shown in Fig. 2, so detailed description is omitted.
In the 5th mode of execution, the 1st axle portion 123a be housed in housing 113a supports by bearing shaft in housing 113a, so can prevent the fluid such as lubricant oil, action medium from externally leaking through this bearing, and by magnetic coupler 165, the 1st axle portion 123a and the 2nd axle portion 123b can be driven and link.
In addition, in the 5th mode of execution, do not make the 2nd axle portion 123b and interpolation body 165b and be housed in structure in obturator, but can make the 2nd axle portion 123b and interpolation body 165b yet and be housed in structure in obturator yet.
In addition, in the 5th mode of execution, the outer cylinder body 165a having made magnetic coupler 165 is driving side, interpolation body 165b is the structure of slave end, but also can make that interpolation body 165b is driving side, outer cylinder body 165a is the structure of slave end.
The description thereof will be omitted for other structure, function and effect, but be same with above-mentioned 4th mode of execution.
［ the 6th mode of execution ］
Fig. 8 represents the power generation arrangement of the 6th mode of execution for the present invention.In addition, give identical reference character to the constituting component identical with the 3rd mode of execution here, omit its detailed description.
In the 6th mode of execution, to the bearing 170 of running shaft 123, supply the water used in condenser 114 as oiling agent.That is, in cooling medium loop 117, the stream in the downstream side of condenser 114 is connected on the bearing 170 of running shaft 123.Thus, the cooled cooling medium being used to action medium in the cooling medium stream 114b of condenser 114 is also utilized by the oiling agent as bearing 170.In legend, illustrate the structure importing cooling medium to the bearing 170 be configured in the 2nd decompressor 140, but bearing 170 also can not be configured in the 2nd decompressor 140.
In the 6th mode of execution, do not need to use lubricant oil, when oiling agent (water) is discarded, do not spend time yet.
In addition, the description thereof will be omitted for other structure, function and effect, but be same with above-mentioned 3rd mode of execution.
［ the 7th mode of execution ］
Fig. 9 represents the power generation arrangement of the 7th mode of execution for the present invention.In addition, give identical reference character to the constituting component identical with the 3rd mode of execution here, omit its detailed description.
In the 7th mode of execution, running shaft 123 is connected to the rotor part of motor 200.That is, in the screw rotor 140a of the 2nd decompressor 140, being connected to on the spindle unit on the end of the 1st decompressor 113 opposition side (right side in Fig. 9), spindle unit namely as a part for running shaft 123, the rotor part of motor 200 is connected to.Illustrate motor 200 as whirler.The axle 201 of motor 200 is connected on compressor 190, and by the rotation of motor 200, compressor 190 drives.Other structures are same with the 3rd mode of execution.When the driving of compressor 190, the power of the 1st and the 2nd decompressor 113,140 is transmitted by compressor 190 via running shaft 123 and the axle 201 be connected on running shaft 123.As a result, with only drive the power consumption that can reduce motor 200 compared with the situation of compressor 190 with motor 200.
［ other mode of executions ］
In addition, the present invention of the 3rd ~ 7th mode of execution is not limited to above-mentioned mode of execution, can carry out various change, improvement etc. in the scope not departing from its purport.Such as, vaporizer 111 also can for having the evaporation part making it evaporate about action dielectric heating to saturation temperature and the structure making to be become by this evaporation part action medium be heated to be about saturation temperature the overheated portion of superheat state.In the case, also evaporation part and overheated portion can be formed individually, or also can form integratedly.In the 6th mode of execution, also can utilize in vaporizer 111 from the oiling agent of the water of steam-condensation as the bearing 170 of running shaft 123.In the 7th mode of execution, compressor 190 also can be set on running shaft 123, by this compressor 190 by whirler drive system Direct driver.

Claims (14)

1. a power generation arrangement, is characterized in that,
Be made up of rotating machinery driving source and heat engine, described rotating machinery driving source produces rotary driving force to rotating machinery, and described heat engine is configured to act synergistically with above-mentioned rotating machinery driving source and drive above-mentioned rotating machinery;
Here, above-mentioned heat engine possesses decompressor, and described decompressor makes the action media expansion of gasification and produces rotary driving force;
Above-mentioned decompressor is provided with bypass pipe arrangement, and the action medium inlet of above-mentioned decompressor is communicated with action media outlet by described bypass pipe arrangement;
Above-mentioned bypass pipe arrangement possesses open and close valve, and described open and close valve is by the opening and closing of above-mentioned bypass pipe arrangement;
Power generation arrangement possesses control gear, and described control gear controls the opening and closing of above-mentioned open and close valve; Control gear controls when rotating machinery driving source and heat engine being started, after flowing into bypass pipe arrangement to make action medium being opened by open and close valve, rotating machinery driving source being started, when being judged as that the action medium flowed into decompressor is vaporized, open and close valve being closed.
2. power generation arrangement as claimed in claim 1, is characterized in that,
Above-mentioned power generation arrangement possesses suction pressure detector, and described suction pressure detector detects the suction pressure of above-mentioned decompressor;
Above-mentioned control gear, when the force value detected by above-mentioned suction pressure detector is more than the force value of regulation, is judged as that the action medium flowed into above-mentioned decompressor is vaporized.
3. power generation arrangement as claimed in claim 1, is characterized in that,
Above-mentioned power generation arrangement possesses suction pressure detector and the pressure detector that spues, and described suction pressure detector detects the suction pressure of above-mentioned decompressor, described in the pressure detector that spues detect the pressure that spues of above-mentioned decompressor;
Above-mentioned control gear, when the force value detected by above-mentioned suction pressure detector becomes more than the value of regulation with the difference of the force value detected by the above-mentioned pressure detector that spues, is judged as that the action medium flowed into above-mentioned decompressor is vaporized.
4. power generation arrangement as claimed in claim 1, is characterized in that,
Above-mentioned rotating machinery is gas compressor;
Above-mentioned power generation arrangement possesses Temperature Detector, and described Temperature Detector detects the effluent air temp of above-mentioned gas compressor;
Above-mentioned control gear, when the temperature value detected by said temperature detector becomes more than the temperature value of regulation, is judged as that the action medium flowed into above-mentioned decompressor is vaporized.
5. power generation arrangement as claimed in claim 1, is characterized in that,
Above-mentioned control gear possesses time measurement device, and described time measurement device was measured from above-mentioned rotating machinery driving source by the transit time starting;
Above-mentioned control gear, when the transit time detected by above-mentioned time measurement device becomes more than scheduled time, is judged as that the action medium flowed into above-mentioned decompressor is vaporized.
6. power generation arrangement as claimed in claim 1, is characterized in that,
Above-mentioned power generation arrangement possesses control gear, and described control gear controls the opening and closing of above-mentioned open and close valve;
Above-mentioned control gear, when above-mentioned rotating machinery driving source and above-mentioned heat engine being stopped, controlling, to be opened by above-mentioned open and close valve, action medium is flowed into above-mentioned bypass pipe arrangement, the driving of above-mentioned decompressor is stopped.
7. power generation arrangement as claimed in claim 1, is characterized in that,
Above-mentioned power generation arrangement possesses control gear, and described control gear controls the opening and closing of above-mentioned open and close valve;
Above-mentioned control gear is under above-mentioned rotating machinery driving source and above-mentioned heat engine carry out the situation of steady running, when above-mentioned rotating machinery driving source stops, controlling, so that above-mentioned open and close valve is opened, action medium is flowed into above-mentioned bypass pipe arrangement, the driving of above-mentioned decompressor is stopped.
8. power generation arrangement as claimed in claim 1, is characterized in that,
Above-mentioned rotating machinery is the compressor of high pressure by the gas compression be supplied to, and above-mentioned rotating machinery driving source is motor;
The hotwork using the pressurized gas generated by above-mentioned compressor to have is the thermal source to action medium in the vaporizer of above-mentioned heat engine.
9. power generation arrangement as claimed in claim 1, is characterized in that,
Above-mentioned rotating machinery driving source is the 2nd decompressor, and described 2nd decompressor is expanded by the heat medium be made up of steam and produces power;
The vaporizer of above-mentioned heat engine with by the heat medium after above-mentioned 2nd expander by above-mentioned action dielectric heating, be vaporized.
10. power generation arrangement as claimed in claim 9, is characterized in that,
Have: the connecting part being connected to the 1st axle portion on the running shaft of above-mentioned heat engine, being connected to the 2nd axle portion on the running shaft of above-mentioned 2nd decompressor and above-mentioned 1st axle portion being combined with above-mentioned 2nd axle portion with transmission of drive force;
Above-mentioned connecting part is made up of the speed change agency converting rotating speed between above-mentioned 1st axle portion and above-mentioned 2nd axle portion.
11. power generation arrangements as claimed in claim 9, is characterized in that,
To the bearing of the running shaft of above-mentioned 2nd decompressor, to supply in the condenser of above-mentioned heat engine used water as oiling agent or in the vaporizer of above-mentioned heat engine from the water of above-mentioned steam-condensation.
12. power generation arrangements as claimed in claim 1, is characterized in that,
Have: the connecting part being connected to the 1st axle portion on the running shaft of above-mentioned heat engine, being connected to the 2nd axle portion on the running shaft of above-mentioned rotating machinery driving source and above-mentioned 1st axle portion being combined with above-mentioned 2nd axle portion with transmission of drive force;
At least one party in above-mentioned 1st axle portion and above-mentioned 2nd axle portion is housed in obturator;
Above-mentioned connecting part is made up of the magnetic coupler closed in above-mentioned 1st axle portion and above-mentioned 2nd axle portion magnetic knot.
The method of operation of 13. 1 kinds of power generation arrangements, is the method for operation of power generation arrangement as claimed in claim 1, it is characterized in that,
When above-mentioned heat engine and above-mentioned rotating machinery driving source are started, make above-mentioned action medium flow into above-mentioned bypass pipe arrangement being opened by above-mentioned open and close valve after, above-mentioned heat engine and above-mentioned rotating machinery driving source are started, if be judged as that the action medium flowed into above-mentioned decompressor is vaporized, then the open and close valve of above-mentioned bypass pipe arrangement is closed;
When above-mentioned heat engine and above-mentioned rotating machinery driving source are stopped, above-mentioned open and close valve is opened, above-mentioned action medium is flowed into above-mentioned bypass pipe arrangement, the driving of above-mentioned decompressor is stopped.
The method of operation of 14. 1 kinds of power generation arrangements, is the method for operation of power generation arrangement as claimed in claim 1, it is characterized in that,
Under above-mentioned rotating machinery driving source carries out the situation of steady running, when above-mentioned rotating machinery driving source stops, above-mentioned open and close valve is opened, above-mentioned action medium is flowed into above-mentioned bypass pipe arrangement, the driving of above-mentioned decompressor is stopped.
CN201310416974.3A 2012-09-14 2013-09-13 The method of operation of power generation arrangement and this device Expired - Fee Related CN103670553B (en)

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