CN102377282A - Electricity generator driven by thermo compressor - Google Patents
Electricity generator driven by thermo compressor Download PDFInfo
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- CN102377282A CN102377282A CN2010102479953A CN201010247995A CN102377282A CN 102377282 A CN102377282 A CN 102377282A CN 2010102479953 A CN2010102479953 A CN 2010102479953A CN 201010247995 A CN201010247995 A CN 201010247995A CN 102377282 A CN102377282 A CN 102377282A
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Abstract
The invention provides an electricity generator driven by a thermo compressor, which comprises a thermo compressor system and an electricity generating mechanism (7), wherein the thermo compressor system is provided with at least one cylinder (1), an output end, a piston (2), a driving mechanism (6), a hot end heat exchanger (4) and a cool end heat exchanger (5), the at least one cylinder (1) is filled with working medium, the output end is in fluid communication with the cylinder (1) and is connected with the electricity generating mechanism (7), the piston (2) is arranged in the cylinder (1) and divides a cylinder cavity body into a hot cavity (8) and a cool cavity (9), the driving mechanism (6) is used for driving the piston (2) to do reciprocating motion in the cylinder, the hot end heat exchanger (4) is arranged at a hot cavity end (8a) of the cylinder (1) for inputting heat for the working medium in the cylinder, the cool end heat exchanger (5) is arranged at a cool cavity end (9a) for inputting cold for the working medium in the cylinder, the hot cavity (8) and the cool cavity (9) are in fluid communication through a passage, and the passage is provided with a heat regenerator (3). According to the electricity generator provided by the invention, heat, especially the waste heat and the like are used as power sources, the electricity motor is driven to output cold outwards by adopting the external fire heating mode, and the invention has the advantages that low grade heat sources can be utilized, the vibration is small, and the noise is low.
Description
Technical field
The present invention relates to utilize the electrical generator fields of heat energy driving, relate in particular to the generator that a kind of thermocompressor drives.
Background technology
Existing generator needs to consume high-grade energy mostly and comes work, and mostly the energy of consumption is non-renewable resources.The tail gas used heat of discharging for general device etc., these generators can not utilize, and have caused the waste of resource and the pollution of environment.Current, need a kind ofly can to utilize heat energy, especially low grade heat energy such as tail gas used heat is as the generator of thermal source, uses the mode of external combustion heating to drive generator and externally exports electric energy.
Summary of the invention
The purpose of this invention is to provide the generator that a kind of like this thermocompressor drives, it drives generating based on low grade heat energy, and has the advantages that vibration is little, noise is low.
Therefore; The generator that the present invention provides a kind of thermocompressor to drive; It comprises thermocompressor system and power facility; Wherein this thermocompressor system have the working medium of being equipped with at least one cylinder and with said cylinder fluid output that be communicated with and that link to each other with this power facility; Be arranged in this cylinder the piston that the cylinder cavity is separated into hot chamber and cold chamber, driven plunger is reciprocating driving mechanism in cylinder, and the hot chamber end that is arranged in cylinder is used for being used for the cool end heat exchanger to the input of the working medium in cylinder cold to the hot end heat exchanger of the input of the working medium in cylinder heat with the cold chamber end that is arranged in cylinder; And be communicated with by a via fluid between this hot chamber and this cold chamber, in this path, be provided with regenerator.
In the present invention, be enclosed in intrasystem working medium and for example can be selected from helium, nitrogen, hydrogen, air and composition thereof any.Certainly, also can select other suitable working fluid for use according to real needs.Be enclosed in the intrasystem working medium of thermocompressor and can not leak, thereby in system, can obtain very high pressure.In addition; Regenerator among the present invention is a kind of device that arrives commonly used in the low-temperature refrigeration technology; It is made up of the porous media solid packing with high specific heat capacity and lower resistance coefficient; Filler can be for example stainless steel, a phosphor bronze etc. of fine metal mesh, compositions such as small metal ball or particle and magnetic material.
According to another scheme of the present invention, said path is formed by the through hole of vertically offering along this piston, and this regenerator is arranged in this through hole, and path that disposes like this and regenerator have simple in structure, the advantage that efficient is high.
According to another scheme of the present invention, said path is formed by the cavity between the inner and outer wall of this cylinder, and this regenerator is arranged in this cavity.
According to another program of the present invention, said path is formed by the connecting line from this hot chamber end to this cold chamber end outside this cylinder, and this regenerator is connected in this connecting line.
According to another program of the present invention, said path is formed by the folder crack between this piston and this cylinder inner wall, and the working medium in the folder crack plays the effect of regenerator.
In the present invention, under the driving of driving mechanism, piston is reciprocating motion in cylinder; Motion through piston is flowed working medium between hot chamber and cold chamber, when piston near the lower dead center of cool end heat exchanger when the top dead centre near hot end heat exchanger moves, the working medium after the hot end heat exchanger heating flows to cold chamber from hot chamber; In this process, the part heat of high temperature refrigerant is stored in the regenerator, when piston moves to top dead centre; Intrasystem most of working medium is positioned at cold chamber; Cool off the working medium in the cold chamber through cool end heat exchanger, the mean temperature of working medium in the system is descended, thereby cause the average pressure of working medium to be in minimum; And when piston near the top dead centre of hot end heat exchanger near cool end heat exchanger when point moves; Flow to hot chamber from cold chamber through said path through the cooled working medium of cool end heat exchanger; Cryogenic fluid absorbs heat from regenerator, is equivalent to cryogenic fluid is carried out preheating, when piston moves to down solstice; Through the input of the working medium in hot end heat exchanger thermotropism chamber heat; Intrasystem most of working medium is positioned at hot chamber, and the mean temperature of working medium raises in the system, thereby causes the average pressure of working medium to be in peak.So, in the cycle movement process of piston, the power pressure in the system is the variation of generating period property also, thereby can drive the power facility generating.The setting of regenerator has reduced the heat that adds of system, has improved energy utilization efficiency thereby play.
In the present invention, power facility is a power facility well known in the prior art, for example linear electrical generator structure, rotary electrification mechanism etc.Through the reciprocating motion of piston in cylinder of drive mechanism thermocompressor system, the thermocompressor system produces pressure oscillation alternately, drives the power facility generating.In the present invention, the output of thermocompressor can be connected to linear generating mechanism and rotary electrification machine mechanism.In an embodiment of power facility, power facility is a linear generating mechanism, and it comprises cylinder body; Be arranged in second piston in the cylinder body; Be arranged on the air inlet of this cylinder body one end, and the generator mover and the generator unit stator that are arranged in this cylinder body other end outside, wherein second piston is connected through the connecting rod that extends through cylinder wall with this generator mover; On the generator mover permanent magnet is housed here, said generator unit stator comprises coil and iron core.In running, when the thermocompressor system produced the pressure wave of height variation, second piston that drives power facility moved in cylinder body, and then drove the relative generator unit stator of generator mover cutting magnetic line movement back and forth, thereby kinetic energy is converted into electric energy.It will be appreciated by those skilled in the art that if above-mentioned straight connecting rod is replaced with toggle, then power facility correspondingly is configured to rotary electrification mechanism.
According to a scheme of the present invention, driving mechanism can be the linear electric motors of main shaft and this piston coaxial arrangement, and linear electric motors have stroke limiting stop usually, and the reciprocating motion of piston in cylinder realizes through the control of journey controller.In addition, driving mechanism also can adopt electric rotating machine, at this moment need be connected with piston through toggle, rotatablely moving of motor is converted into the linear reciprocating motion of piston.
In the present invention, the number of cylinder can be selected as required, can adopt the single cylinder structure, also can adopt the multi-cylinder structure.Adopt under the situation of multi-cylinder structure, for example the number of cylinder can be 2,3,4,5 etc.; According to concrete number of cylinders, can select these cylinder symmetric arrangement perhaps are arranged to V-type.In addition, when adopting the multi-cylinder structure, can utilize action when realizing multi-cylinder through each cylinder piston separately is together in series, this will further describe hereinafter.
In addition, hot end heat exchanger can adopt the external combustion mode of heating, and cool end heat exchanger can adopt air-cooled or water-cooling pattern cools off.It will be appreciated by those skilled in the art that hot end heat exchanger is adopted the internal combustion heating, and the cooling of cool end heat exchanger being carried out other form also falls within the scope of the invention.
The generator needs mechanical power seldom that drives according to thermocompressor of the present invention drives, and utilize low grade heat energy for example used heat wait the generating of compressed gas-driven power facility, externally export electric energy, have easy manufacturing, it is low to make an uproar, and vibrates little characteristics.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified, Reference numeral identical among the figure is represented components identical, wherein:
Fig. 1 is that wherein regenerator is arranged in the piston according to the structural representation of an embodiment of the generator of thermocompressor driving of the present invention;
Fig. 2 is that wherein regenerator is arranged between the inner and outer wall of cylinder according to the structural representation of another embodiment of the generator of thermocompressor driving of the present invention;
Fig. 3 is that wherein regenerator is arranged in outside the cylinder according to the structural representation of another embodiment of the generator of thermocompressor driving of the present invention;
Fig. 4 is the structural representation according to another embodiment of the generator of thermocompressor driving of the present invention, and wherein regenerator is made up of the working medium in the folder crack between piston and the cylinder wall;
Fig. 5 is the generator Structure sketch map according to the thermocompressor driving of twin-tub structure of the present invention, wherein two cylinder symmetric arrangement;
Fig. 6 is the generator Structure sketch map according to the thermocompressor driving of four cylinder structures of the present invention, wherein four cylinder symmetric arrangement;
Fig. 7 is the structural representation according to an embodiment of power facility of the present invention.
The Reference numeral list
The 1-cylinder; The 2-piston; The 3-regenerator; The 4-hot end heat exchanger; The 5-cool end heat exchanger; The 6-driving mechanism; The 7-power facility; The hot chamber of 8-; The cold chamber of 9-; The hot chamber of 8a-end; The cold chamber of 9a-end; The 71-air inlet; 72-power facility cylinder body; 73-second piston; The 74-linkage.
Embodiment
Referring to Fig. 1, show the structural representation of an embodiment of the generator that drives according to thermocompressor of the present invention.As can be seen from the figure; This generator mainly comprises power facility 7 and thermocompressor system; The thermocompressor system comprises the cylinder 1 that is communicated with its output fluid; Be positioned at the piston 2 that this cylinder 1 is divided into hot chamber 8 and cold chamber 9, and the hot end heat exchanger 4 and the cool end heat exchanger 5 that is arranged in cold chamber end 9a that are arranged in hot chamber end 8a, power facility 7 is connected to the output of thermocompressor system.And be packaged with working medium in the thermocompressor system; Hot end heat exchanger 4 is used for the working medium in the heat transferred cylinder 1 of thermal source; Here mainly be meant the working medium in the hot chamber 8, cool end heat exchanger 5 is used for cold is passed to the working medium in the cylinder, mainly is the working medium in the cold chamber 9 here.In this embodiment, along piston 2 vertically offer through hole, this through hole forms in path that hot chamber 8 and cold chamber 9 fluids are communicated with and this through hole and is equiped with regenerator 3.In the present invention, the working medium in the cylinder for example can be selected from any in helium, nitrogen, hydrogen, air and composition thereof.It will be understood by those skilled in the art that according to concrete refrigeration demand and also can select other suitable working fluid for use.In addition; Here the regenerator 3 that adopts is this area a kind of devices commonly used; It is made up of the porous media solid packing with high specific heat capacity and lower resistance coefficient, and filler can be for example stainless steel, a phosphor bronze silk screen of fine metal mesh, and small metal ball and magnetic material are formed.
Also comprise driven plunger 2 reciprocating driving mechanism 6 in cylinder 1 according to thermocompressor of the present invention system; In this embodiment; Driving mechanism 6 is the linear electric motors of its main shaft and piston 2 coaxial arrangement; And these linear electric motors also are provided with the stroke limiting stop (not shown), are used for the reciprocating motion of control piston in cylinder 1.As replacement scheme, also can use electric rotating machine as driving mechanism 6, electric rotating machine is connected with piston 2 through toggle, thereby converts rotatablely moving of electric rotating machine to rectilinear motion.Advantageously; In the present invention; The thermocompressor system utilizes hot end heat exchanger 4 to absorb the for example driving that mutually combines of low grade heat energy and driving mechanism of extraneous heat energy; Only need driving mechanism 6 inputs energy seldom, the pressure wave that just can make the thermocompressor operation produce alternate drives power facility 7 and obtains electric energy.The heat energy that is used for driving the thermocompressor system here, for example comprise solar energy, chemical reaction can and the heat energy that produces of liquid, gas and solid fuel wait and drive.As long as can produce the heat of uniform temperature, just can drive this thermocompressor system works.
In the generator that thermocompressor according to the present invention drives, start driving mechanism 6, it drives piston 2 and in cylinder 1, moves.At piston 2 from the process that move in end 9a thermotropism chamber, cold chamber 8; High temperature refrigerant in the hot chamber 8 flows to cold chamber 9 through regenerator 3; A part of heat of high temperature refrigerant is stored in the regenerator 3, is equivalent to the high temperature refrigerant precooling, and the temperature under the effect of cool end heat exchanger 5 of the working medium in the cold chamber 9 reduces; When piston 2 during to the least significant end (top dead centre of piston can be thought in this position) in hot chamber 8; Working medium major part in the cylinder 1 is in this cold chamber, and the temperature of working medium drops to minimum, thereby the intrasystem pressure of whole thermocompressor is in minimum in this position.Piston 2 from hot chamber end 8a to the process that move in cold chamber, the cryogenic fluids in the cold chamber 9 flow to hot chamber 8 through regenerator 3, cryogenic fluid absorbs heats from regenerator 3; Be equivalent to the cryogenic fluid preheating; At this moment the working medium in the hot chamber 8 absorb from the heat of hot end heat exchanger 4 and temperature height, and when piston 2 moved to the least significant end (lower dead center of piston can be thought in this position) in cold chamber, the working medium major part in the cylinder 1 was in hot chamber; The temperature of working medium is elevated to peak; Thereby in this position the pressure of whole thermocompressor system is in peak, at this moment, piston 2 is accomplished periods of motion.In the cycle movement process of piston, the thermocompressor system produces the pressure wave of alternate, obtains electric energy thereby drive power facility 7 generatings.In the present invention, can select the travel frequency of piston,, then can select higher piston travel frequency,, then can select lower piston travel frequency if the energy output of expectation is less if the energy output of expectation is bigger according to the energy output of power facility.In this embodiment, the low-limit frequency of piston can be 0.1Hz, and highest frequency can be selected in the scope that mechanical structure allows as required.
Those skilled in the art are to be understood that; Regenerator among the present invention is this area a kind of device that arrives commonly used; It is made up of the porous media solid packing with high specific heat capacity and lower resistance coefficient; Filler can be for example stainless steel, a phosphor bronze etc. of fine metal mesh, compositions such as small metal ball or particle and magnetic material.
In the present invention, the power facility 7 of use is that power facility well known to those skilled in the art can be linear generating mechanism and rotary electrification mechanism.Referring to Fig. 7, show an embodiment of the power facility 7 of employing of the present invention.In this embodiment; Power facility is a linear generating mechanism 7; It comprises cylinder body 72, is arranged in second piston 73 in the cylinder body, is arranged on the air inlet 71 of this cylinder body one end; And the generator mover 76 and generator unit stator 75 that are arranged in this cylinder body 72 other ends outside, wherein second piston 73 is connected through the straight connecting rod 74 that extends through cylinder wall with this generator mover 76.In order to reduce the friction of second piston and power facility cylinder body perisporium, second piston preferably with generator mover 76 coaxial arrangement.
In this embodiment, on this generator mover 76 permanent magnet is housed, generator unit stator 75 comprises iron core and is wrapped in the coil on generator mover 76 outside housings.In addition, it will be understood by those skilled in the art that the perhaps matched in clearance that to closely cooperate between second piston and the cylinder wall.In order to control second piston moving in power facility cylinder body 72, can also on this connecting leg 78 valve 77 be housed also through the chamber in fluid communication of connecting leg 78 with the piston two ends, be used to control the connection and the closure of connecting leg.Under the situation that the chamber at piston two ends is communicated with, spring capable of using for example post spring so is connected to piston on the sidewall of cylinder body one end, thereby when the pressure of thermocompressor system reduced, spring can promote piston reset.Thus in running, through the driving from the pressure wave of thermocompressor system, first piston can reciprocating motion in cylinder body, and then drives the relative generator unit stator of generator mover cutting magnetic line movement back and forth, and kinetic energy is converted into electric energy.It will be appreciated by those skilled in the art that if above-mentioned straight connecting rod is replaced with toggle, this toggle converts the rectilinear motion of piston to mover rotatablely move, then power facility correspondingly is configured to rotary electrification mechanism.
In addition, the heat exchanger that uses in this embodiment also is this area heat exchanger commonly used, comprises pipe heat exchanger, tubular heat exchanger, finned heat exchanger and plate heat exchanger etc.
Fig. 2 shows according to another embodiment of the invention; Wherein except the path with hot chamber 8 and the connection of cold chamber 9 fluids is formed by the cavity between the inner and outer wall that is arranged on cylinder 1; The class generator that thermocompressor shown in other structure and Fig. 1 drives seemingly, wherein regenerator 3 is arranged in the cavity between cylinder inner wall and the outer wall.Fig. 3 shows another embodiment of the path that hot chamber 8 and cold chamber 9 fluids is communicated with according to the present invention; In this embodiment; This path forms by being arranged in the outer connecting line from hot chamber end 8a to cold chamber end 9a of this cylinder, and regenerator 3 is connected in this connecting line.Another embodiment of the path that hot chamber 8 and cold chamber 9 fluids are communicated with has been shown in Fig. 4; Wherein this path is formed by the folder crack between the inwall of piston 2 and cylinder 1; Here, the working medium in the folder crack can play the effect of the regenerator that is provided with among the above embodiment.The running of the generator among these three embodiment and the class generator shown in Fig. 1 seemingly here repeat no more.
Fig. 5 and Fig. 6 show the thermocompressor system with a plurality of cylinders.Thermocompressor system among Fig. 5 is the twin-tub structure, and two cylinder 2 symmetric arrangement are configured to make two same moved further of the piston in the cylinder at driving mechanism 6, and such configuration has improved force balance effect, and then has also improved operating efficiency.As replacement scheme; Different with shown in Fig. 5, two cylinders of thermocompressor system also can so be arranged, make the piston of two cylinders be connected through the connecting rod that is arranged between two cylinders; The cold chamber of one of them cylinder is near connecting rod; And the hot chamber of another cylinder is near this connecting rod, and the cold chamber of two cylinders is communicated with through the pipeline fluid, and this pipeline is communicated to the vascular device again.When the drive mechanism connecting rod drove piston and moves, the piston in two cylinders can arrive top dead centre and lower dead center simultaneously, and because the pressure at piston two ends equates that driving mechanism only needs very little power.When the thermocompressor system is three cylinders or four cylinder structures, also can adopt this mode.Thermocompressor system shown in Fig. 6 is the four-cylinder structure, and this configuration is compared with twin-tub mechanism among Fig. 5, has the operating efficiency of better force balance effect and Geng Gao.
Under the situation that does not exceed the spirit and scope of the present invention, those of ordinary skills can make these and other change and variation to the present invention, and this has done in the accompanying Claim book more specifically and has set forth.Be to be further appreciated that the many aspects of different schemes are mutual alternative completely or partially.In addition, the explanation that one of ordinary skill in the art will appreciate that the front only is exemplary, can not constitute restriction to the content of the present invention that in the accompanying Claim book, further describes.
Claims (10)
1. the generator that drives of a thermocompressor; It comprises thermocompressor system and power facility (7); Wherein this thermocompressor system have the working medium of being equipped with at least one cylinder (1) and with said cylinder fluid output that be communicated with and that link to each other with this power facility (7); Be arranged on the interior piston (2) that the cylinder cavity is separated into hot chamber (8) and cold chamber (9) of this cylinder (1); Drive this piston (2) reciprocating driving mechanism (6) in cylinder; And hot chamber end (8a) that is arranged in said cylinder (1) is used for being used for the cool end heat exchanger (5) to the input of the working medium in cylinder cold to the hot end heat exchanger (4) of the working medium in cylinder input heat with cold chamber end (9a) that is arranged in said cylinder (1), and between this hot chamber (8) and this cold chamber (9) by via fluid connection, in this path, be provided with regenerator (3).
2. the generator that thermocompressor according to claim 1 drives is characterized in that said path is formed by the through hole of vertically offering along this piston (2), and this regenerator (3) is arranged in this through hole.
3. the generator that thermocompressor according to claim 1 drives is characterized in that said path is formed by the cavity between the inner and outer wall of this cylinder (1), and this regenerator (3) is arranged in this cavity.
4. the generator that thermocompressor according to claim 1 drives; It is characterized in that; Said path is formed by the connecting line (8c) from this hot chamber end (8a) to this cold chamber end (8b) outside this cylinder (1), and this regenerator (3) is connected in this connecting line (8c).
5. the generator that thermocompressor according to claim 1 drives is characterized in that said path is formed by the folder crack between this piston (2) and this cylinder (1) inwall.
6. the generator that drives according to each described thermocompressor in the claim 1 to 5 is characterized in that, said driving mechanism (6) is the linear electric motors with this piston (2) coaxial arrangement.
7. the generator that drives according to each described thermocompressor in the claim 1 to 5 is characterized in that said driving mechanism (6) is an electric rotating machine, and it is connected with piston through toggle.
8. the generator that drives according to each described thermocompressor in the claim 1 to 5 is characterized in that the number of said cylinder is at least two, according to the concrete number of said cylinder, with these cylinder symmetric arrangement or be arranged to V-type.
9. the generator that thermocompressor according to claim 1 drives; It is characterized in that; Said power facility (7) comprises cylinder body (72), is arranged in second piston (73) in this cylinder body (72), is arranged on the air inlet (71) of this cylinder body one end; And the generator mover (76) and the generator unit stator (75) that are arranged in this cylinder body (72) other end outside, wherein this second piston (73) is connected through the linkage (74) that extends through cylinder wall with this generator mover (76).
10. the generator that thermocompressor according to claim 9 drives is characterized in that on the said generator mover (76) permanent magnet is housed, said generator unit stator (75) comprises coil and iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010102479953A CN102377282A (en) | 2010-08-06 | 2010-08-06 | Electricity generator driven by thermo compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102479953A CN102377282A (en) | 2010-08-06 | 2010-08-06 | Electricity generator driven by thermo compressor |
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| CN102377282A true CN102377282A (en) | 2012-03-14 |
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| CN2010102479953A Pending CN102377282A (en) | 2010-08-06 | 2010-08-06 | Electricity generator driven by thermo compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570952A (en) * | 2016-02-28 | 2016-05-11 | 北京工业大学 | Thermal energy smoke exhaust ventilator |
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Application publication date: 20120314 |