CN102374152A - Thermal compressor system - Google Patents
Thermal compressor system Download PDFInfo
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- CN102374152A CN102374152A CN2010102480039A CN201010248003A CN102374152A CN 102374152 A CN102374152 A CN 102374152A CN 2010102480039 A CN2010102480039 A CN 2010102480039A CN 201010248003 A CN201010248003 A CN 201010248003A CN 102374152 A CN102374152 A CN 102374152A
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Abstract
The invention provides a thermal compressor system which is provided with at least one cylinder (1) communicated with fluid of an output end (7) and filled with a working medium, a piston (2) arranged in the cylinder (1) and used for dividing a cylinder cavity body into a heat cavity (8) and a cold cavity (9), a drive mechanism (6) used for driving the piston (2) to reciprocate in the cylinder, and a heat end heat exchanger (5) arranged in a heat cavity end (8a) of the cylinder (1) for inputting heat to the working medium in the cylinder and a cold end heat exchanger (5) arranged in a cold cavity end (9a) of the cylinder (1) for inputting cold to the working medium in the cylinder, wherein a passage is arranged between the heat cavity (8) and the cold cavity (9) for fluid intercommunication, and a heat returner (3) is arranged in the channel. The heat energy, especially waste heat and the like, is used as a power source in the heat compressor system, and an external combustion heating mode is adopted for driving, thus the thermal compressor system has the characteristics of capability of utilizing a low-grade heat source, small vibration and low noise.
Description
Technical field
The present invention relates to utilize the thermocompressor field, relate in particular to a kind of thermocompressor system that drives by low grade heat energy.
Background technique
Along with economic development of China and the energy shortage in the international coverage, energy-saving and emission-reduction become a challenging job with the raising efficiency of energy utilization.In this course, the recovery and reuse of used heat have very large market and meaning.Power station, chemical plant, Iron And Steel Plant etc. all have a large amount of used heat to produce, and the solar energy of easy acquisition generally also only provides lower heat source temperature.The annual sales volume of the air-conditioning of China is crossed 2,000 ten thousand, and wherein the overwhelming majority is an electric drive.Because increasing air-conditioning unit comes into operation, electricity needs is also increasing.
China's electric energy mainly comes from the burning of fossil fuel; But, use the caused environmental pollution of traditional combustion engine and the energy of heat power station and the burning petroleum resource of coal, rock gas to use social concern such as imbalance outstanding day by day along with the rise gradually of the worsening shortages of oil, rock gas, coal resources and oil, rock gas, coal price.Research can drive the correlation technique of motor (compressor) with the used heat equal energy source in rock gas, biogas, living beings, solar energy and the industrial process; For the comprehensive utilization that promotes the energy, single fossil resource energy resource structure situation and the minimizing environmental pollution of the current use of improvement, have great importance.The thermocompressor technology is exactly a kind of dynamic power machine with such meaning.
Existing compressor mostly needs to consume high-grade energy and come work, and mostly the energy that is consumed is non-renewable resources, the tail gas used heat of discharging in the industrial process etc., and these compressors can not utilize, and cause the waste of resource and to the pollution of environment.
Therefore, a kind of start-up temperature of current needs is low, the thermocompressor system that can utilize low grade heat energy to drive.
Summary of the invention
The purpose of this invention is to provide a kind of like this thermocompressor system, it drives based on low grade heat energy, and has the advantages that vibration is little, noise is low.
Therefore; The present invention provides a kind of thermocompressor system; This thermocompressor system has at least one cylinder that working medium is housed that is communicated with its output terminal fluid; Be arranged in the cylinder piston that the cylinder cavity is separated into hot chamber and cold chamber, driven plunger is reciprocating driving mechanism in cylinder, and the thermocompressor system comprises that also the hot chamber end that is arranged in cylinder is used for being used to cool off the cool end heat exchanger of working medium in the cylinder to the hot end heat exchanger of the input of the working medium in cylinder heat and 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 medium 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 pipeline from this hot chamber end to this cold chamber end outside this cylinder, and this regenerator is connected in this connecting pipeline.
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 to-and-fro 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 center 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 center; 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 middle pressure of working medium to be in minimum; And when piston near the top dead center 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 middle pressure of working medium to be in peak.So; In the cyclical movement process of piston; Power pressure in the system is the variation of generating period property also, in the thermocompressor system, forms periodic pressure wave, thus the load that can drive the output terminal that is connected to this thermocompressor system for example vascular refrigerator, generator etc.The setting of regenerator has reduced the heat that adds of system, has improved energy utilization efficiency thereby play.
According to a scheme of the present invention, driving mechanism can be the linear electric motor of main shaft and this piston coaxial arrangement, and linear electric motor have stroke limiting stop usually, and the to-and-fro 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 connecting rod, 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 in the text.
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.
Drive according to thermocompressor of the present invention system needs mechanical work seldom, and utilize low grade heat energy for example used heat wait pressurized gas to produce periodic pressure wave to drive load, it has 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 character identical among the figure is represented components identical, wherein:
Fig. 1 is that wherein regenerator is arranged in the piston according to an embodiment's of thermocompressor of the present invention system structural representation;
Fig. 2 is that wherein regenerator is arranged between the inner and outer wall of cylinder according to another embodiment's of thermocompressor of the present invention system structural representation;
Fig. 3 is that wherein regenerator is arranged in outside the cylinder according to another embodiment's of thermocompressor of the present invention system structural representation;
Fig. 4 is the structural representation according to another embodiment of thermocompressor of the present invention system, and wherein regenerator is made up of the working medium in the folder crack between piston and the cylinder wall;
Fig. 5 is the structural representation according to the thermocompressor system of twin-tub structure of the present invention, wherein two cylinder symmetric arrangement;
Fig. 6 is the structural representation according to the thermocompressor system of four cylinder structures of the present invention, wherein four cylinder symmetric arrangement.
The reference character Schedule
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 output terminal of 7-thermocompressor system; The hot chamber of 8-; The cold chamber of 9-; The hot chamber of 8a-end; The cold chamber of 9a-end.
Embodiment
Referring to Fig. 1, show structural representation according to an embodiment of thermocompressor of the present invention system.As can be seen from the figure; The thermocompressor system comprises the cylinder 1 that is communicated with its output terminal 7 fluids; 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.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 cryogenic technique field a kind of devices commonly used; It is made up of the porous medium 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 motor of its main shaft and piston 2 coaxial arrangement; And these linear electric motor also are provided with the stroke limiting stop (not shown), are used for the to-and-fro motion of control piston in cylinder 1.Because hot chamber 8 is communicated with cold chamber 9 fluids, so the pressure reduction at piston 2 two ends is very little, the resistance that therefore need overcome is very little, thereby driving mechanism 6 need only apply very little driving force, just can make piston 2 to-and-fro motion in cylinder.As replacement scheme, also can use electric rotating machine as driving mechanism 6, electric rotating machine is connected with piston 2 through connecting rod, thereby converts rotatablely moving of electric rotating machine to straight line 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 the load that is connected to output terminal 7, for example vascular refrigerator, generator etc.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 thermocompressor according to the present invention system, under the effect of driving mechanism 6, it is mobile cylinder 1 in to drive piston 2.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 center 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 cycle of motion.In the cyclical movement process of piston, the thermocompressor system produces the pressure wave of alternate, thus drive load for example the vascular device freeze and obtain low temperature, perhaps drive generator and generate electricity.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 refrigerating capacity of expectation is less if the refrigerating capacity of expectation is bigger according to the size of required refrigerating capacity.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 a kind of device that arrives commonly used in the low-temperature refrigeration technology; It is made up of the porous medium 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 addition, the heat exchanger that uses in this embodiment also is related domain heat exchanger commonly used, comprises tubular heat exchanger, tubular heat exchanger, finned heat exchanger and plate type 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; Thermocompressor system class shown in other structure and Fig. 1 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 pipeline from hot chamber end 8a to cold chamber end 9a of this cylinder, and regenerator 3 is connected in this connecting pipeline.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 thermocompressor system among these three embodiments and the thermocompressor system class 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 working 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 center 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 working 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 (9)
1. thermocompressor system; This thermocompressor system has at least one cylinder (1) that working medium is housed that is communicated with its output terminal (7) fluid; 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 importing to the working medium in the cylinder to the hot end heat exchanger (4) of the working medium in cylinder input heat and cold chamber end (9a) that is arranged in said cylinder (1) cool end heat exchanger (5) of cold; And be communicated with by a via fluid between this hot chamber (8) and this cold chamber (9), in this path, be provided with regenerator (3).
2. thermocompressor according to claim 1 system 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. thermocompressor according to claim 1 system 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. thermocompressor according to claim 1 system is characterized in that said path is formed by the connecting pipeline (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 pipeline (8c).
5. thermocompressor according to claim 1 system is characterized in that said path is formed by the folder crack between this piston (2) and this cylinder (1) inwall.
6. according to each described thermocompressor system in the claim 1 to 5, it is characterized in that said driving mechanism (6) is the linear electric motor with this piston (2) coaxial arrangement.
7. according to each described thermocompressor system in the claim 1 to 4, it is characterized in that said driving mechanism (6) is an electric rotating machine, it is connected with piston through connecting rod.
8. according to each described thermocompressor system in the claim 1 to 4, it is characterized in that the number of said cylinder is at least two, according to the concrete number of said cylinder, these cylinder symmetric arrangement or be arranged to V-type.
9. thermocompressor according to claim 7 system is characterized in that the cold chamber of said a plurality of cylinders (1) communicates with each other through a stream, and the output terminal of this thermocompressor (7) is connected in this stream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102480039A CN102374152A (en) | 2010-08-06 | 2010-08-06 | Thermal compressor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102480039A CN102374152A (en) | 2010-08-06 | 2010-08-06 | Thermal compressor system |
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|---|---|
| CN102374152A true CN102374152A (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102480039A Pending CN102374152A (en) | 2010-08-06 | 2010-08-06 | Thermal compressor system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047105A (en) * | 2012-12-18 | 2013-04-17 | 成都宇能通能源开发有限公司 | Gas compressor with energy source |
| CN103452800A (en) * | 2012-11-21 | 2013-12-18 | 上海理工大学 | Bubble pump with gas return device |
| CN110307066A (en) * | 2019-05-30 | 2019-10-08 | 同济大学 | A kind of residual heat of tail gas of automobile recycling charging unit based on vascular generator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1079969A1 (en) * | 1982-06-25 | 1984-03-15 | Московский Ордена Ленина И Ордена Октябрьской Революции Энергетический Институт | Thermocompressor |
| US5845507A (en) * | 1994-09-23 | 1998-12-08 | University Of Warwick | Thermal compressive device |
| CN1743767A (en) * | 2004-09-03 | 2006-03-08 | 中国科学院理化技术研究所 | Coaxial travelling-wave thermo acoustic drive refrigerating system |
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2010
- 2010-08-06 CN CN2010102480039A patent/CN102374152A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1079969A1 (en) * | 1982-06-25 | 1984-03-15 | Московский Ордена Ленина И Ордена Октябрьской Революции Энергетический Институт | Thermocompressor |
| US5845507A (en) * | 1994-09-23 | 1998-12-08 | University Of Warwick | Thermal compressive device |
| CN1743767A (en) * | 2004-09-03 | 2006-03-08 | 中国科学院理化技术研究所 | Coaxial travelling-wave thermo acoustic drive refrigerating system |
Non-Patent Citations (3)
| Title |
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| 吕君等: "《中国工程热物理学会学术会议论文》", 31 December 2009 * |
| 王俊杰等: "热压缩机", 《压缩机技术》 * |
| 纪国林: "无污染气体热压缩机的实验研究", 《低温与超导》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452800A (en) * | 2012-11-21 | 2013-12-18 | 上海理工大学 | Bubble pump with gas return device |
| CN103452800B (en) * | 2012-11-21 | 2016-02-03 | 上海理工大学 | With the air lift pump of gas recirculation device |
| CN103047105A (en) * | 2012-12-18 | 2013-04-17 | 成都宇能通能源开发有限公司 | Gas compressor with energy source |
| CN103047105B (en) * | 2012-12-18 | 2016-01-06 | 成都宇能通能源开发有限公司 | A kind of gas compressor carrying the energy |
| CN110307066A (en) * | 2019-05-30 | 2019-10-08 | 同济大学 | A kind of residual heat of tail gas of automobile recycling charging unit based on vascular generator |
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Application publication date: 20120314 |