CN1563859A - Magnetic fluid refrigerating system driven by heat power - Google Patents
Magnetic fluid refrigerating system driven by heat power Download PDFInfo
- Publication number
- CN1563859A CN1563859A CNA2004100173613A CN200410017361A CN1563859A CN 1563859 A CN1563859 A CN 1563859A CN A2004100173613 A CNA2004100173613 A CN A2004100173613A CN 200410017361 A CN200410017361 A CN 200410017361A CN 1563859 A CN1563859 A CN 1563859A
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- Prior art keywords
- magnetic
- magnetic fluid
- generator
- absorber
- shell side
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The system includes external magnetic field, generator, steam line, condenser, throttle valve, evaporator, absorber, magnetic liquid pipe etc. Non-uniform magnetic field supplied by permanent magnet or electric solenoids are applied to bottom of generator and absorber. With being covered by Nano magnetic fine grains, surfactant is dispersed on base liquid evenly so as to form stable colloidal solution as magnetic liquid. The base liquid is binary mixture from refrigerant and absorbent or single working medium with higher volatility. Generator, condenser, evaporator, absorber and magnetic liquid pipe constitute circulation loop of refrigerant. Generator, bypass pipe, throttle valve, absorber and magnetic liquid pipe constitute circulation loop of absorbent. Features are: less moving parts, no need of pump. The system is operable without need of electricity.
Description
Technical field:
The present invention relates to be a kind of be the refrigeration system of working medium with the magnetic fluid, particularly a kind of magnetic fluid refrigeration system that adopts heat energy to drive belongs to Building Environment and Equipment Engineering and Refrigeration Engineering technical field.
Background technology:
The conventional compression Refrigeration Technique has been widely used in all trades and professions, has formed huge industry.But there are two obvious defects in it: refrigerating efficiency is low, and the leakage of freon working medium can destroy atmospheric ozone layer.For the efficient that improves the compression-type refrigeration technology with reduce environmental hazard, the engineering research personnel begin to explore new Refrigeration Technique, as technology such as thermoelectric cooling, thermoacoustic refrigeration, absorption (attached) refrigeration and magnetic refrigeration.
Magnetic refrigeration be a kind of be the Refrigeration Technique of working medium with the magnetic material.Compare traditional Refrigeration Technique, the magnetic refrigerator that utilizes magnetothermal effect exploitation to work at ambient temperature has simple in structure, non-environmental-pollution, advantage such as energy-efficient, and pays close attention to because of huge market prospects are subjected to the whole world.The U.S., Japan, France etc. have dropped into a large amount of manpower and materials and have researched and developed.Refrigeration working medium in the magnetic Refrigeration Technique is solid-state magnetic material, and its performance directly influences the power and the efficient of magnetic refrigeration.Magnetic Nano synthetic material with superparamagnetism can amplify the magnetic refrigeration effect, can be used as nano magnetic refrigeration working medium.Adopt prepared in various methods nano magnetic refrigeration working medium and study its magnetic refrigeration characteristic, just becoming a research focus of magnetic refrigerating field.Magnetic liquid is liquid magnetic Nano synthetic, has superparamagnetism, can amplify the magnetic refrigeration effect.Therefore magnetic liquid can be applied to refrigeration system as magnetic refrigeration working substance, produce a kind of new refrigeration system.
In prior art, the patent No. is 02157727.7, and name is called " magnetic fluid refrigerating circulatory device ", designs according to thermodynamic principles, with the patent of invention of water-based magnetic fluid, comprise pump, surface cooler, coil, surface heater and metallic conduit as working medium.But this device does not have phase transition process, and refrigerating efficiency is low, and needs pump to pressurize.The patent No. is 01102941.2, name is called near the patent of invention of " Rare-Earth Magnetic fluent material and magnetic refrigeration apparatus thereof the room temperature ", comprise field system, magnetic liquid pump, magnetic liquid line, semiconductor cooler, heat exchanger fluid and pipeline, heat exchanger fluid pump and load, magnetic fluid is made by the rare earth particle.But this equipment pipeline complexity, and need under the effect of a plurality of pumps, work.Above-mentioned deficiency has greatly hindered popularization and the application of magnetic fluid at refrigerating field.
Summary of the invention:
For deficiency and the defective that overcomes prior art, satisfy sustainable development to the requirement of refrigerating and air conditioning industry in energy-conservation and environmental protection, the present invention developed adopt heat energy drive, with the refrigerating system of magnetic fluid as working medium.
After the magnetic particle clad surface activating agent with nanoscale (less than 10nm), disperse is in base fluid uniformly and stably, and the solution that forms stable colloid is magnetic fluid.Even magnetic fluid can not produce segregation phenomenon yet under the effect of gravity, centrifugal force or high-intensity magnetic field, be one of most advanced and sophisticated both at home and abroad at present nanometer technology.
The saturation magnetization of magnetic fluid reduces with the rising of temperature, during to curie point, and the magnetic complete obiteration.After temperature descended, magnetic can be recovered again.Magnetic fluid is placed under temperature field and the magnetic field, because the existence of the temperature difference, there is difference in the intensity of magnetization of magnetic fluid, thereby is subjected to force unbalance.The temperature lower, the intensity of magnetization of magnetic fluid is big, is subjected to the active force in magnetic field also bigger.Therefore magnetic fluid can be under the acting in conjunction of the buoyancy lift of magnetic field active force and fluid and flow the formation thermomagnetic convection.Thermomagnetic convection is more much bigger than free convection effect.In addition, magnetic fluid has sensitiveness to temperature, and can improve heat transfer efficiency greatly, can be used as a kind of working medium of augmentation of heat transfer.
The present invention includes externally-applied magnetic field, generator, steam pipework, condenser, choke valve, evaporimeter, absorber, bypass line and magnetic fluid pipeline, apply non-uniform magnetic field at generator and absorber place, this magnetic field is provided by permanent magnet or electrical solenoid.Intrasystem working medium is magnetic fluid, and the base fluid of magnetic fluid is the binary mixture that cold-producing medium and absorbent are formed, and as water-ammonia, lithium bromide-water, or the mixture of other hydrocarbons also can be the big single working medium of volatility.
When magnetic fluid is heated and when seething with excitement, the magnet power that externally-applied magnetic field provided is separated gas phase (cold-producing medium) and the liquid phase (highly enriched magnetic fluid) of magnetic fluid, and drive that they are mobile towards steam pipework and bypass line respectively in generator.Refrigerant vapour at first enters condenser, emits there to become liquid after heat is given cooling water, through the choke valve pressurization, evaporates in evaporimeter more then, absorbs the heat of chilled water, like this, has realized refrigeration.Highly enriched magnetic fluid flows to absorber through bypass line and choke valve.In absorber, the refrigerant mixed that highly enriched magnetic fluid and condensation are got off has obtained dilution.Then, magnetic fluid turns back to generator at the effect lower edge of magnet power magnetic fluid pipeline.Generator, steam pipework, condenser, expansion valve, evaporimeter, absorber, magnetic fluid pipeline have constituted refrigerant circulation loop; Generator, bypass line, choke valve, absorber, magnetic fluid pipeline have constituted circulation loop of absorbent.
The advantage of this new refrigeration system is: (1) is because the used working medium of this refrigeration system is magnetic fluid, its base fluid is the binary mixture or the big single working medium of volatility of cold-producing medium and absorbent, has eliminated the defective because of damaging the ozone layer of using that freon refrigerant brings, damage to the environment such as poisonous.(2) it does not have the necessary solution pump of common absorption refrigeration, so this refrigeration system is the kind of refrigeration cycle that a kind of real heat drives, and can be in the operation of the place of any electric power inconvenience.Because of system does not have pump, so moving component is few in the system, noise is little, the reliability height, and the life-span is long, is convenient to maintenance.(3) magnetic fluid has better heat transfer efficiency than its base fluid, so the refrigerating efficiency of this system is higher, and more miniaturization.
Description of drawings:
Fig. 1 is a magnetic fluid refrigerant system configurations schematic diagram.
Among the figure, the 1st, externally-applied magnetic field, the 2nd, generator, the 3rd, steam pipework, the 4th, condenser, the 5th, choke valve, the 6th, evaporimeter, the 7th, absorber, the 8th, magnetic fluid pipeline, the 9th, bypass pipe, the 10th, choke valve.
The specific embodiment:
Below in conjunction with accompanying drawing concrete enforcement of the present invention is further described:
As shown in Figure 1, the present invention includes externally-applied magnetic field 1, generator 2, steam pipework 3, condenser 4, choke valve 5, evaporimeter 6, absorber 7, magnetic fluid pipeline 8, bypass line 9, choke valve 10.
Shell side outlet above the generator 2 links to each other with the shell side inlet of condenser 4 by steam pipework 3, and the shell side outlet of condenser 4 links to each other with the inlet of choke valve 5, and the outlet of choke valve 5 connects the shell side inlet of evaporimeter 6.The shell side outlet of evaporimeter 6 links to each other with the shell side inlet above the absorber 7.The shell side outlet of absorber 7 bottoms links to each other with the inlet of magnetic fluid pipeline 8.The shell side inlet of the outlet of magnetic fluid pipeline 8 below generator 2 links to each other.The tube side of generator 2 communicates with thermals source such as high-temperature steam, hot water, provides heating working medium required heat.Logical cooling water in the tube side of condenser 4, logical chilled water in the tube side of evaporimeter 6, logical cooling water in the tube side of absorber 7.
The shell side outlet on generator 2 the right links to each other with the shell side inlet on absorber 7 left sides by bypass line 9, in bypass line 9, choke valve 10 is housed.Externally-applied magnetic field 1 is separately positioned on the shell side porch of generator 2 bottoms and the shell side exit of absorber 7 bottoms.Externally-applied magnetic field 1 is the permanent magnet of N-S utmost point upper and lower settings, or electric solenoid.
Magnetic fluid working medium in the refrigeration system is the solution that forms in base fluid of disperse uniformly and stably after the nano level magnetic particle clad surface activating agent.Magnetic particle can be Fe
3O
4, the alloy particle of Ni, Co and Fe or nitrided iron, FeB particulate.Base fluid can be the binary mixture of cold-producing medium and absorbent composition, and as water-ammonia, lithium bromide-water, or the binary mixed solution of high carbon alkane and pentamethylene also can be the big single working medium of volatility, as water.
Magnetic fluid in being filled in generator 2 is heated by external heat source and when seething with excitement, magnet power that externally-applied magnetic field 1 is provided is separated gas phase (cold-producing medium) and the liquid phase (highly enriched magnetic fluid) of magnetic fluid, and drives that they are mobile towards steam pipework 3 and bypass line 9 respectively.Refrigerant vapour at first enters condenser 4, emits there to become liquid after heat is given cooling water, and then through choke valve 5 pressurizations, evaporation in evaporimeter 6 again, the heat of absorption chilled water like this, has been realized refrigeration.Highly enriched magnetic fluid flows to absorber 7 through bypass line 9 and choke valve 10.In absorber 7, the refrigerant mixed that highly enriched magnetic fluid and condensation are got off has obtained dilution.Then, magnetic fluid turns back to generator 2 at the effect lower edge of magnet power magnetic fluid pipeline 8.Generator 2, steam pipework 3, condenser 4, expansion valve 5, evaporimeter 6, absorber 7, magnetic fluid pipeline 8 have constituted refrigerant circulation loop; Generator 2, bypass line 9, choke valve 10, absorber 7, magnetic fluid pipeline 8 have constituted circulation loop of absorbent.
Claims (3)
1 one kinds of magnetic fluid refrigeration systems that heat energy drives, comprise externally-applied magnetic field (1), generator (2), steam pipework (3), condenser (4), choke valve (5), evaporimeter (6), absorber (7), magnetic fluid pipeline (8), bypass pipe (9), choke valve (10) is characterized in that the present invention is the magnetic fluid refrigeration system that drives with heat energy, and the shell side outlet above the generator (2) links to each other with the shell side inlet of condenser (4) by steam pipework (3), the shell side outlet of condenser (4) links to each other with the inlet of choke valve (5), and the outlet of choke valve (5) connects the shell side inlet of evaporimeter (6).The shell side outlet of evaporimeter (6) links to each other with the shell side inlet above the absorber (7), and the following shell side outlet of absorber (7) links to each other with the inlet of magnetic fluid pipeline (8).The shell side inlet of the outlet of magnetic fluid pipeline (8) below generator (2) links to each other, generator (2) tube side communicates with thermals source such as high-temperature steam, hot water, logical cooling water in the tube side of condenser (4), logical chilled water in the tube side of evaporimeter (6), logical cooling water in the tube side of absorber (7), the shell side outlet on generator (2) the right links to each other with the shell side inlet on absorber (7) left side by bypass line (9), in bypass line (9), choke valve (10) is housed.Externally-applied magnetic field (1) is separately positioned on the shell side porch of generator (2) bottom and the shell side exit of absorber (7) bottom.
The magnetic fluid refrigeration system that 2 heat energy according to claim 1 drive, it is characterized in that magnetic fluid working medium in the refrigeration system is the solution that forms in base fluid of disperse uniformly and stably after the nano level magnetic particle clad surface activating agent, magnetic particle can be Fe
3O
4, the alloy particle of Ni, Co and Fe or nitrided iron, FeB particulate; base fluid can be the binary mixture of cold-producing medium and absorbent composition; as water-ammonia; lithium bromide-water; the binary mixed solution of perhaps high carbon alkane and pentamethylene; also can be the big single working medium of volatility, as water, magnetic fluid be filled in generator (2) and the magnetic fluid pipeline (8).
The magnetic fluid refrigeration system that 3 heat energy according to claim 1 drive is characterized in that externally-applied magnetic field (1) is the permanent magnet of N-S utmost point upper and lower settings, or electric solenoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100173613A CN100476318C (en) | 2004-04-01 | 2004-04-01 | Magnetic fluid refrigerating system driven by heat power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100173613A CN100476318C (en) | 2004-04-01 | 2004-04-01 | Magnetic fluid refrigerating system driven by heat power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1563859A true CN1563859A (en) | 2005-01-12 |
| CN100476318C CN100476318C (en) | 2009-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100173613A Expired - Fee Related CN100476318C (en) | 2004-04-01 | 2004-04-01 | Magnetic fluid refrigerating system driven by heat power |
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| CN (1) | CN100476318C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316239C (en) * | 2005-05-19 | 2007-05-16 | 上海交通大学 | Nano refrigerant, and experimental apparatus for capability of heat transferring pressure drop of gas-liquid two phases |
| FR2935469A1 (en) * | 2008-08-26 | 2010-03-05 | Cooltech Applications | THERMAL GENERATOR WITH MAGNETOCALORIC MATERIAL |
| CN102356286A (en) * | 2009-03-20 | 2012-02-15 | 制冷技术应用股份有限公司 | Magnetocaloric heat generator, and heat exchange method for same |
| CN103338615A (en) * | 2013-06-14 | 2013-10-02 | 成都艾迈计算机辅助工程有限责任公司 | Cooling device and method with function of noise reduction |
| CN103438607A (en) * | 2013-08-29 | 2013-12-11 | 顺德职业技术学院 | Magnetic fluid heat pipe semiconductor electronic refrigerator |
| CN106568229A (en) * | 2016-07-26 | 2017-04-19 | 朱义洲 | Novel electromagnetic propulsion magneto-rheological fluid refrigerating device based on magnetocaloric effect |
| CN106839505A (en) * | 2017-03-09 | 2017-06-13 | 天津商业大学 | A kind of magnetic refrigerator of magnetic material circulation |
| CN113154717A (en) * | 2020-11-04 | 2021-07-23 | 张学文 | Uncompensated absorption refrigeration cycle method |
-
2004
- 2004-04-01 CN CNB2004100173613A patent/CN100476318C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316239C (en) * | 2005-05-19 | 2007-05-16 | 上海交通大学 | Nano refrigerant, and experimental apparatus for capability of heat transferring pressure drop of gas-liquid two phases |
| FR2935469A1 (en) * | 2008-08-26 | 2010-03-05 | Cooltech Applications | THERMAL GENERATOR WITH MAGNETOCALORIC MATERIAL |
| CN102356286A (en) * | 2009-03-20 | 2012-02-15 | 制冷技术应用股份有限公司 | Magnetocaloric heat generator, and heat exchange method for same |
| CN102356286B (en) * | 2009-03-20 | 2013-08-28 | 制冷技术应用股份有限公司 | Magnetocaloric heat generator, and heat exchange method for same |
| CN103338615A (en) * | 2013-06-14 | 2013-10-02 | 成都艾迈计算机辅助工程有限责任公司 | Cooling device and method with function of noise reduction |
| CN103438607A (en) * | 2013-08-29 | 2013-12-11 | 顺德职业技术学院 | Magnetic fluid heat pipe semiconductor electronic refrigerator |
| CN106568229A (en) * | 2016-07-26 | 2017-04-19 | 朱义洲 | Novel electromagnetic propulsion magneto-rheological fluid refrigerating device based on magnetocaloric effect |
| CN106839505A (en) * | 2017-03-09 | 2017-06-13 | 天津商业大学 | A kind of magnetic refrigerator of magnetic material circulation |
| CN113154717A (en) * | 2020-11-04 | 2021-07-23 | 张学文 | Uncompensated absorption refrigeration cycle method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100476318C (en) | 2009-04-08 |
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Granted publication date: 20090408 Termination date: 20120401 |