CN111750658A - Material drying system based on transcritical carbon dioxide heat pump - Google Patents
Material drying system based on transcritical carbon dioxide heat pump Download PDFInfo
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- CN111750658A CN111750658A CN202010741486.XA CN202010741486A CN111750658A CN 111750658 A CN111750658 A CN 111750658A CN 202010741486 A CN202010741486 A CN 202010741486A CN 111750658 A CN111750658 A CN 111750658A
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- carbon dioxide
- heat pump
- dioxide heat
- transcritical carbon
- transcritical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
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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
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
- F26B21/086—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The utility model provides a material drying system based on transcritical carbon dioxide heat pump, including the condensing tower, the transcritical carbon dioxide heat pump, circulating water pump, auxiliary cooler, the shower that is connected with auxiliary cooler through auxiliary cooler outlet conduit, install the noncondensable gas pipeline on the condensing tower top, install the vacuum pump on the noncondensable gas pipeline, be equipped with material entry and material export and through the belt dryer that dry high temperature air pipeline is connected with the transcritical carbon dioxide heat pump, be located between transcritical carbon dioxide heat pump and the belt dryer and install the circulating fan on dry high temperature air pipeline, be connected with the belt dryer through damp hot air pipeline, be connected with the transcritical carbon dioxide heat pump through dry hot air pipeline, and be connected with the membrane separation device of condensing tower through steam conduit. The pump of the invention is friendly to refrigerant, high in water receiving quality, free from peculiar smell emission, high-efficient and energy-saving. Can be widely applied to the field of material drying.
Description
Technical Field
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, which can be widely applied to the field of material drying.
Background
The material drying is a common production process in the industrial field and is also a production link with larger energy consumption. The conventional belt type drying equipment for the transcritical carbon dioxide heat pump has the following problems: (1) in order to separate water vapor from circulating air, the humid and hot air at the outlet of the belt drying equipment needs to be reduced to be below a water dew point, the sensible heat of the circulating air can increase the power consumption of a compressor, or the technical measure of heating the cold air at the outlet of a condenser through a heat exchanger increases the complexity of the equipment and the power consumption of a fan; (2) the moist and hot air condensed water at the outlet of the belt type drying equipment contains more impurities and has low purity; (3) the transcritical carbon dioxide heat pump refrigerant has high ozone depletion potential ODP or greenhouse effect potential GWP, and is polluted greatly. (4) The temperature of the circulating air at the outlet of the transcritical carbon dioxide heat pump is low.
Disclosure of Invention
The invention aims to provide a material drying system based on a transcritical carbon dioxide heat pump, which is friendly to refrigerant, high in water receiving quality, free of peculiar smell emission, high in efficiency and energy-saving.
In order to achieve the purpose, the material drying system based on the transcritical carbon dioxide heat pump comprises a condensing tower, a transcritical carbon dioxide heat pump, a circulating water pump, an auxiliary cooler, a sprayer, a non-condensable gas pipeline, a vacuum pump, a belt dryer, a drying high-temperature air pipeline, a belt dryer and a drying high-temperature air pipeline, wherein a water outlet is formed in the side face of the bottom of the condensing tower, the transcritical carbon dioxide heat pump is connected with the condensing tower through a water outlet pipeline of the condensing tower, the circulating water pump is arranged between the condensing tower and the transcritical carbon dioxide heat pump and is installed on the water outlet pipeline of the condensing tower, the auxiliary cooler is provided with an air inlet and an air outlet and is connected with the transcritical carbon dioxide heat pump through a water outlet pipeline of the transcritical carbon dioxide heat pump, the sprayer is connected with the auxiliary cooler through a water outlet pipeline And the circulating fan is a membrane separation device which is connected with the belt dryer through a damp and hot air pipeline, is connected with the trans-critical carbon dioxide heat pump through a dry and hot air pipeline and is connected with the condensing tower through a steam pipeline.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, which comprises a main cooler, a heater, a compressor, a hot water pump, a supercritical carbon dioxide superheated steam outlet, a supercritical carbon dioxide heat pump, a condenser, a supercritical carbon dioxide heat pump and an auxiliary cooler, wherein the main cooler is arranged at the tail end of a water outlet pipeline of a condensing tower and is connected with the auxiliary cooler through a water outlet pipeline of the transcritical carbon dioxide heat pump, the heater is respectively connected with the main cooler through a transcritical carbon dioxide heat pump refrigerant outlet pipeline and a transcritical carbon dioxide heat pump refrigerant inlet pipeline for conveying a transcritical carbon dioxide heat pump refrigerant, is connected with a membrane separation device through a dry hot air pipeline and, The expansion valve is arranged on a refrigerant input pipeline of the transcritical carbon dioxide heat pump, the inlet of the expansion valve is supercritical carbon dioxide with reduced temperature, and the outlet of the expansion valve is a low-temperature low-pressure gas-liquid two-phase mixture.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein a refrigerant of the transcritical carbon dioxide heat pump is carbon dioxide, the Ozone Depletion Potential (ODP) of the carbon dioxide is 0, and the greenhouse effect index (GWP) of substances of the carbon dioxide is 1.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump.A membrane separation device comprises an air chamber positioned at the upper part, a permeable membrane positioned at the middle part and allowing only water vapor in the air chamber to pass through, and a steam chamber positioned at the lower part.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein a main cooler is a shell-and-tube heat exchanger or a plate heat exchanger.
The material drying system based on the transcritical carbon dioxide heat pump is characterized in that the circulating fan can be controlled in a variable frequency mode, and the circulating air quantity is adjusted.
The spray thrower can atomize circulating water to enable the circulating water to be in contact with steam, reduce the temperature of the steam and condense the steam into water.
The material drying system based on the transcritical carbon dioxide heat pump is characterized in that the vacuum pump can pump out non-condensable gas at the top of the condensing tower.
The material drying system based on the transcritical carbon dioxide heat pump, disclosed by the invention, has the advantages that the auxiliary cooler can utilize ambient air to cool circulating water from the main cooler.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein a heater is a finned tube type heat exchanger.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein a finned tube type heat exchanger comprises a heat exchange copper light tube and fins arranged on the heat exchange copper light tube.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein a working medium in a heat exchange copper light pipe is a transcritical carbon dioxide heat pump refrigerant, and a working medium outside the heat exchange copper light pipe is circulating air.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein fins are made of copper or aluminum.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, which has the following working principle:
(1) the flow principle of the transcritical carbon dioxide heat pump refrigerant is as follows: the supercritical carbon dioxide at the outlet of the compressor is condensed by the heater to release heat, then the temperature is reduced by the expansion valve to form a low-temperature and low-pressure gas-liquid two-phase mixture, and then the low-temperature and low-pressure superheated gas is formed after the low-temperature and low-pressure superheated gas returns to the compressor after the low-temperature and low-pressure superheated gas is evaporated and.
(2) The principle of the circulating air flow path is as follows: the wet hot air of belt dryer export gets into the air chamber, and vapor gets into the steam chamber through the osmotic membrane under osmotic pressure's effect, and other compositions in the air can not pass through the osmotic membrane, and the air water content reduces, and the temperature is unchangeable, gets into the heater and heats up the back, forms dry high temperature's air, gets into belt dryer after through the circulating fan pressure boost.
(3) The principle of the circulating water flow is as follows: the vapor passing through the permeable membrane is collected in the steam chamber, enters the lower part of the condensing tower through a pipeline, and is subjected to mass transfer and heat transfer with the circulating water atomized by the sprayer in a counter-current manner, the temperature of the steam is reduced, the steam is condensed into water, the water and the circulating water with the increased temperature fall to the bottom of the condensing tower, and the redundant circulating water is discharged through the water outlet. The steam is condensed into water, the volume is reduced, and vacuum is generated in the condensing tower. Non-condensable gas in the condensing tower is pumped out by a vacuum pump. Circulating water with the temperature increased at the bottom of the condensing tower is pressurized by the circulating water pump, then sequentially passes through the main cooler and the auxiliary cooler to be cooled, and then returns to the sprayer for repeated use.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein an ozone consumption potential value ODP is used for inspecting the potential influence degree of ozone damage caused by the gas of a substance dissipating into the atmosphere, and the carbon dioxide does not consume ozone, so the value of the carbon dioxide is 0. The global warming potential GWP is an index based on the radiation characteristics of well-mixed greenhouse gases, and refers to the potential capability of a certain greenhouse gas to cause global warming within 100 years relative to carbon dioxide. Carbon dioxide has conventionally been used as a reference gas because it has the greatest effect on global warming. The GWP value of carbon dioxide is 1, and the ratio of the rest gas to carbon dioxide is taken as the GWP value of the gas. The GWP values of the remaining greenhouse gases are generally much higher than carbon dioxide, but carbon dioxide is the main contributor to the greenhouse effect, which is 60% due to its low content in air.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein a permeable membrane only allows water vapor in an air chamber to pass through, and other components in the air chamber cannot pass through. The steam chamber is in a vacuum state, and the inside of the steam chamber is filled with water vapor permeated by the permeable membrane.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump.A main cooler is arranged between a circulating water pump and an auxiliary cooler, and a refrigerant of the transcritical carbon dioxide heat pump evaporates and absorbs heat and can cool circulating water from the circulating water pump.
The material drying system based on the transcritical carbon dioxide heat pump is characterized in that the heater is arranged between the air chamber and the circulating fan, and the refrigerant of the transcritical carbon dioxide heat pump is condensed to release heat so as to heat the circulating air from the air chamber.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, in particular to a belt type dryer, which is equipment for continuously drying wet materials by taking hot air provided by the outside as a drying medium and a continuously moving mesh belt as a drying platform, wherein the inlet of the belt type dryer is connected with the outlet of a circulating fan, and the outlet of the belt type dryer is connected with the inlet of an air chamber.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump.A condensing tower is in a vacuum state, and the lower part of the condensing tower is connected with a steam chamber through a pipeline.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, which utilizes natural working medium carbon dioxide as a transcritical carbon dioxide heat pump refrigerant; recovering the heat of the damp and hot air at the outlet of the belt dryer by using a transcritical carbon dioxide heat pump principle; the isothermal separation of air and water vapor is realized by a membrane method; by utilizing a spraying method, vacuum degree is generated, the driving force for separating air from water vapor is obtained, and high-quality water is obtained at the same time. Therefore, the transcritical carbon dioxide heat pump is friendly to the refrigerant, high in water quality and free of peculiar smell emission. Meanwhile, water is recycled, energy is recycled through heat exchange, and energy waste is avoided, so that the energy-saving and energy-saving effects are achieved.
In conclusion, the material drying system based on the transcritical carbon dioxide heat pump is friendly in pump refrigerant, high in water receiving quality, free of peculiar smell emission, high in efficiency and energy-saving.
Drawings
The invention will be further described with reference to the accompanying drawings and examples thereof.
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
In fig. 1, the material drying system based on transcritical carbon dioxide heat pump of the present invention comprises a condensing tower 1 with a water outlet a on the bottom side, a transcritical carbon dioxide heat pump 2 connected with the condensing tower through a condensing tower water outlet pipe 11, a circulating water pump 3 located between the condensing tower and the transcritical carbon dioxide heat pump and installed on the condensing tower water outlet pipe, an auxiliary cooler 4 with an air inlet b and an air outlet c and connected with the transcritical carbon dioxide heat pump through a transcritical carbon dioxide heat pump water outlet pipe 12, a sprayer 5 connected with the auxiliary cooler through an auxiliary cooler water outlet pipe 13, a noncondensable gas pipe 6 installed on the top of the condensing tower, a vacuum pump 7 installed on the noncondensable gas pipe, a belt dryer 8 with a material inlet d and a material outlet e and connected with the transcritical carbon dioxide heat pump through a high temperature drying air pipe 14, the circulating fan 9 is positioned between the transcritical carbon dioxide heat pump and the belt dryer and is arranged on a high-temperature drying air pipeline, and the membrane separation device 10 is connected with the belt dryer through a damp-hot air pipeline 15, connected with the transcritical carbon dioxide heat pump through a dry-hot air pipeline 16 and connected with the condensing tower through a steam pipeline 17.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein the transcritical carbon dioxide heat pump 2 comprises a main cooler 2-1 which is arranged at the tail end of a water outlet pipeline of a condensing tower and is connected with an auxiliary cooler through the water outlet pipeline of the transcritical carbon dioxide heat pump, a heater 2-2 which is respectively connected with the main cooler through a transcritical carbon dioxide heat pump refrigerant output pipeline 2-5 and a transcritical carbon dioxide heat pump refrigerant input pipeline 2-6 for conveying transcritical carbon dioxide heat pump refrigerants, is connected with a membrane separation device through a dry hot air pipeline and is connected with a belt type dryer through a dry high-temperature air pipeline, a compressor 2-3 which is arranged between the main cooler and the heater, is arranged on the refrigerant output pipeline of the transcritical carbon dioxide heat pump, has an inlet of carbon dioxide superheated steam and, and the expansion valve 2-4 is positioned between the main cooler and the heater, is arranged on a refrigerant input pipeline of the transcritical carbon dioxide heat pump, has an inlet of supercritical carbon dioxide with reduced temperature and has an outlet of a low-temperature low-pressure gas-liquid two-phase mixture.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein a refrigerant of the transcritical carbon dioxide heat pump is carbon dioxide, the Ozone Depletion Potential (ODP) of the carbon dioxide is 0, and the greenhouse effect index (GWP) of substances of the carbon dioxide is 1.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein a membrane separation device 10 comprises an air chamber 10-1 positioned at the upper part, a permeable membrane 10-2 positioned at the middle part and allowing only water vapor in the air chamber to pass through, and a steam chamber 10-3 positioned at the lower part.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein a main cooler is a shell-and-tube heat exchanger or a plate heat exchanger.
The material drying system based on the transcritical carbon dioxide heat pump is characterized in that the circulating fan can be controlled in a variable frequency mode, and the circulating air quantity is adjusted.
The spray thrower can atomize circulating water to enable the circulating water to be in contact with steam, reduce the temperature of the steam and condense the steam into water.
The material drying system based on the transcritical carbon dioxide heat pump is characterized in that the vacuum pump can pump out non-condensable gas at the top of the condensing tower.
The material drying system based on the transcritical carbon dioxide heat pump, disclosed by the invention, has the advantages that the auxiliary cooler can utilize ambient air to cool circulating water from the main cooler.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein a heater is a finned tube type heat exchanger.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein a finned tube type heat exchanger comprises a heat exchange copper light tube and fins arranged on the heat exchange copper light tube.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein a working medium in a heat exchange copper light pipe is a transcritical carbon dioxide heat pump refrigerant, and a working medium outside the heat exchange copper light pipe is circulating air.
The invention relates to a material drying system based on a transcritical carbon dioxide heat pump, wherein fins are made of copper or aluminum.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (13)
1. A material drying system based on a transcritical carbon dioxide heat pump is characterized by comprising a condensing tower, a transcritical carbon dioxide heat pump, a circulating water pump, an auxiliary cooler, a sprayer, a non-condensable gas pipeline, a vacuum pump, a belt dryer, a circulating water pump, a vacuum pump and a circulating water pump, wherein a water outlet is formed in the side face of the bottom of the condensing tower, the transcritical carbon dioxide heat pump is connected with the condensing tower through a water outlet pipeline of the condensing tower, the circulating water pump is arranged between the condensing tower and the transcritical carbon dioxide heat pump and is installed on the water outlet pipeline of the condensing tower, the auxiliary cooler is provided with an air inlet and an air outlet and is connected with the transcritical carbon dioxide heat pump through a water outlet pipeline of the transcritical carbon dioxide heat pump, the sprayer is connected with the auxiliary cooler through a water outlet pipeline of the auxiliary cooler The fan is a membrane separation device which is connected with the belt dryer through a damp and hot air pipeline, is connected with the trans-critical carbon dioxide heat pump through a dry and hot air pipeline and is connected with the condensing tower through a steam pipeline.
2. The material drying system based on the transcritical carbon dioxide heat pump as claimed in claim 1, wherein the transcritical carbon dioxide heat pump comprises a main cooler installed on the end of the outlet pipe of the condensing tower and connected with the auxiliary cooler through the outlet pipe of the transcritical carbon dioxide heat pump, a heater connected with the main cooler through the outlet pipe of the transcritical carbon dioxide heat pump refrigerant and the inlet pipe of the transcritical carbon dioxide heat pump refrigerant, respectively, connected with the membrane separation device through the dry hot air pipe, and connected with the belt dryer through the dry high temperature air pipe, a compressor located between the main cooler and the heater and installed on the outlet pipe of the transcritical carbon dioxide heat pump refrigerant with the inlet of superheated steam and the outlet of supercritical carbon dioxide, the expansion valve is positioned between the main cooler and the heater, is arranged on a refrigerant input pipeline of the transcritical carbon dioxide heat pump, and has an inlet of supercritical carbon dioxide with reduced temperature and an outlet of a low-temperature low-pressure gas-liquid two-phase mixture.
3. The material drying system based on the transcritical carbon dioxide heat pump as recited in claim 2, wherein the transcritical carbon dioxide heat pump refrigerant is carbon dioxide, the Ozone Depletion Potential (ODP) of the carbon dioxide is 0, and the material generation greenhouse effect index (GWP) of the carbon dioxide is 1.
4. The material drying system based on the transcritical carbon dioxide heat pump as recited in claim 1, wherein said membrane separation device comprises an air chamber located at the upper part, a permeable membrane located at the middle part for allowing only water vapor in the air chamber to pass through, and a steam chamber located at the lower part.
5. The material drying system based on the transcritical carbon dioxide heat pump as recited in claim 2, wherein the main cooler is a shell-and-tube heat exchanger or a plate heat exchanger.
6. The material drying system based on the transcritical carbon dioxide heat pump as recited in claim 1, wherein the circulating fan can be controlled by frequency conversion to adjust the amount of circulating air.
7. The material drying system based on the transcritical carbon dioxide heat pump as recited in claim 1, wherein said sprayer can atomize the circulating water to make it contact with the steam, so as to lower the temperature of the steam and condense the steam into water.
8. The transcritical carbon dioxide heat pump based material drying system of claim 1, wherein said vacuum pump is capable of pumping non-condensable gases from the top of the condensing tower.
9. The transcritical carbon dioxide heat pump based material drying system of claim 1 wherein said auxiliary cooler is capable of cooling the circulating water from the primary cooler with ambient air.
10. The material drying system based on the transcritical carbon dioxide heat pump as recited in claim 2, wherein the heater is a finned tube heat exchanger.
11. The material drying system based on the transcritical carbon dioxide heat pump as recited in claim 10, wherein said finned tube heat exchanger comprises heat exchanging copper light tubes and fins mounted on the heat exchanging copper light tubes.
12. The material drying system based on the transcritical carbon dioxide heat pump as recited in claim 11, wherein the working medium in the heat exchange copper light pipe is the refrigerant of the transcritical carbon dioxide heat pump, and the working medium outside the heat exchange copper light pipe is the circulating air.
13. The material drying system based on the transcritical carbon dioxide heat pump as recited in claim 11, wherein said fins are made of copper or aluminum.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010741486.XA CN111750658B (en) | 2020-07-29 | 2020-07-29 | Material drying system based on transcritical carbon dioxide heat pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010741486.XA CN111750658B (en) | 2020-07-29 | 2020-07-29 | Material drying system based on transcritical carbon dioxide heat pump |
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| CN111750658A true CN111750658A (en) | 2020-10-09 |
| CN111750658B CN111750658B (en) | 2023-06-16 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050120729A1 (en) * | 2003-12-04 | 2005-06-09 | Lili Zhang | Transcritical heat pump water heating system using auxiliary electric heater |
| CN102080922A (en) * | 2009-11-30 | 2011-06-01 | 中国科学院理化技术研究所 | Method and system for drying solid material |
| EP2594687A1 (en) * | 2011-11-21 | 2013-05-22 | Electrolux Home Products Corporation N.V. | A laundry dryer with a heat pump system |
| CN107270696A (en) * | 2017-06-23 | 2017-10-20 | 中国科学院理化技术研究所 | One kind is based on CO2The drying system of Trans-critical cycle heat pump cycle |
| CN212339898U (en) * | 2020-07-29 | 2021-01-12 | 青岛达能环保设备股份有限公司 | Material drying device based on transcritical carbon dioxide heat pump |
-
2020
- 2020-07-29 CN CN202010741486.XA patent/CN111750658B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050120729A1 (en) * | 2003-12-04 | 2005-06-09 | Lili Zhang | Transcritical heat pump water heating system using auxiliary electric heater |
| CN102080922A (en) * | 2009-11-30 | 2011-06-01 | 中国科学院理化技术研究所 | Method and system for drying solid material |
| EP2594687A1 (en) * | 2011-11-21 | 2013-05-22 | Electrolux Home Products Corporation N.V. | A laundry dryer with a heat pump system |
| CN107270696A (en) * | 2017-06-23 | 2017-10-20 | 中国科学院理化技术研究所 | One kind is based on CO2The drying system of Trans-critical cycle heat pump cycle |
| CN212339898U (en) * | 2020-07-29 | 2021-01-12 | 青岛达能环保设备股份有限公司 | Material drying device based on transcritical carbon dioxide heat pump |
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|---|---|
| CN111750658B (en) | 2023-06-16 |
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