CN111578684A - Vehicle-mounted heat pump drying system driven by engine - Google Patents

Vehicle-mounted heat pump drying system driven by engine Download PDF

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Publication number
CN111578684A
CN111578684A CN202010442555.7A CN202010442555A CN111578684A CN 111578684 A CN111578684 A CN 111578684A CN 202010442555 A CN202010442555 A CN 202010442555A CN 111578684 A CN111578684 A CN 111578684A
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CN
China
Prior art keywords
engine
compressor
driven
drying system
heat pump
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Pending
Application number
CN202010442555.7A
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Chinese (zh)
Inventor
冯荣
赵星辰
孟欣
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Shaanxi University of Technology
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Shaanxi University of Technology
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Publication date
Application filed by Shaanxi University of Technology filed Critical Shaanxi University of Technology
Priority to CN202010442555.7A priority Critical patent/CN111578684A/en
Publication of CN111578684A publication Critical patent/CN111578684A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K25/00—Auxiliary drives
    • B60K25/04—Auxiliary drives from static or dynamic pressure or vacuum, developed by the engine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
    • F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/06—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/12—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/06—Combinations of two or more pumps
    • 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
    • F25B30/02—Heat pumps of the compression type
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The invention discloses an engine-driven vehicle-mounted heat pump drying system, which comprises a truck engine, wherein the truck engine is connected with a gas-water heat exchanger; the gas-water heat exchanger, the liquid-water heat exchanger, the high-temperature evaporator and the circulating water pump are sequentially connected to form a closed loop; the liquid-water heat exchanger is sequentially connected with the cooling liquid radiator, the cooling liquid circulating pump and the truck engine to form a closed loop; the second compressor is sequentially connected with the condenser, the first throttling mechanism, the air side evaporator and the first compressor to form a loop, one end of the high-temperature evaporator is connected between the condenser and the first throttling mechanism through the second throttling mechanism, and the other end of the high-temperature evaporator is connected between the second compressor and the first compressor; an output shaft of the truck engine is respectively connected with the first compressor and the second compressor through a planetary gear mechanism; the condenser is arranged in the oven; the energy released by the fuel can be effectively utilized, the heat can be absorbed from the air, and the energy-saving and environment-friendly effects are obvious.

Description

Vehicle-mounted heat pump drying system driven by engine
Technical Field
The invention belongs to the technical field of drying of special agricultural products, and relates to a vehicle-mounted heat pump drying system driven by an engine.
Background
The drying process is an important component of deep processing of most special agricultural products, and is vital to reduce postpartum loss, prolong the quality guarantee period of the special agricultural products, improve the quality of the special agricultural products and the like. The traditional drying method for agricultural products mostly adopts natural airing and a simple drying mode using burning fossil fuel as a heat source, so that on one hand, the problems of serious energy consumption and environmental pollution are caused, on the other hand, the color, flavor, nutrition and organization of materials are influenced, the quality of the agricultural products is reduced, and the requirement of the market is difficult to adapt.
The air source heat pump technology can obtain heat energy which is several times more than input electric energy, and has no pollution to the environment, so the air source heat pump technology has certain application in the technical field of drying of special agricultural products. However, various drying technologies including air source heat pump drying technology still have some problems to reduce the function of the drying technology in the field of agricultural special products. Firstly, the existing drying rooms are built at fixed places and are far away from most agricultural and special product production areas, and during the process of transporting agricultural and special products to the drying rooms, on one hand, the volume of the agricultural and special products which are not dried is larger than that of the agricultural and special products which are dried, so that the transportation cost is increased, and on the other hand, the agricultural and special products which are not dried are easily damaged and deteriorated during the transportation process; secondly, the air source heat pump unit with larger heating power is driven by three-phase electricity, but the three-phase electricity is not common in rural areas at present, especially in areas for planting special agricultural products.
Disclosure of Invention
The invention aims to provide a vehicle-mounted heat pump drying system driven by an engine, and solves the problems that in the prior art, a drying room is too far away from a special agricultural product production area, so that the transportation cost is high, and the current three-phase power is not popularized in rural areas, especially in special agricultural product planting areas.
The technical scheme adopted by the invention is that the vehicle-mounted heat pump drying system driven by the engine comprises a truck engine, wherein the truck engine is connected with a gas-water heat exchanger through a pipeline a to form a truck engine tail gas waste heat utilization circulating system;
the gas-water heat exchanger is sequentially connected with the liquid-water heat exchanger, the high-temperature evaporator and the circulating water pump through a pipeline c to form a closed loop, so that a cooling waste heat and tail gas waste heat utilization circulating system of the truck engine is formed;
the liquid-water heat exchanger is sequentially connected with a cooling liquid radiator, a cooling liquid circulating pump and a truck engine through a pipeline b to form a closed loop, so that a truck engine cooling waste heat utilization circulating system is formed;
the system comprises a condenser, a first throttling mechanism, an air side evaporator and a first compressor, and is characterized by further comprising the second compressor, wherein the second compressor is sequentially connected with the condenser, the first throttling mechanism, the air side evaporator and the first compressor through a pipeline d to form a loop;
the invention is also characterized in that:
an output shaft of the truck engine is respectively connected with the first compressor and the second compressor through a planetary gear mechanism;
the planetary gear mechanism comprises a main gear connected with an output shaft of the truck engine, the main gear is respectively meshed with a first driven gear and a second driven gear, the output shaft of the first driven gear is connected with the second compressor, and the output shaft of the second driven gear is connected with the first compressor.
The condenser is arranged in the oven.
The pipe b is filled with cooling liquid.
The pipeline c is filled with heating medium.
The lines d and e are filled with refrigerant R134 a.
The invention has the beneficial effects that:
(1) the vehicle-mounted heat pump drying system driven by the engine is arranged in the wagon compartment, the oven used for drying the agricultural and special products is arranged in the wagon compartment, and the agricultural and special products can be dried from the wagon to a place nearest to the agricultural and special products;
(2) the vehicle-mounted heat pump drying system driven by the engine adopts the engine to drive the compressor of the heat pump system to work, and the engine is driven by the truck fuel, so that the heat pump drying system provided by the invention can work in any place without depending on a power grid;
(3) the vehicle-mounted heat pump drying system driven by the engine can also use waste heat discharged by the engine as the drying system, and can improve the utilization rate of energy contained in fuel.
Drawings
FIG. 1 is a schematic diagram of an on-board heat pump drying system driven by an engine according to the present invention;
FIG. 2 is a schematic diagram of the operation of the engine driving the first and second compressors.
In the figure, 1 is a cooling liquid circulating pump, 2 is a truck engine, 3 is a liquid-water heat exchanger, 4 is a cooling liquid radiator, 5 is a gas-water heat exchanger, 6 is a circulating water pump, 7 is a first throttling mechanism, 8 is an air side evaporator, 9 is a first compressor, 10 is a second throttling mechanism, 11 is a high temperature evaporator, 12 is a second compressor, 13 is a condenser, 14 is an oven, 15 is pipelines a, 16, b and 17, c and 18 are pipelines d and 19 are pipelines e;
2-1, a main gear, 2-2, a first driven gear, 2-3, and a second driven gear.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to a vehicle-mounted heat pump drying system driven by an engine, which comprises a truck engine 2, wherein the truck engine 2 is connected with a gas-water heat exchanger 5 through a pipeline a15 to form a truck engine tail gas waste heat utilization circulating system;
the gas-water heat exchanger 5 is sequentially connected with the liquid-water heat exchanger 3, the high-temperature evaporator 11 and the circulating water pump 6 through a pipeline c17 to form a closed loop, so that a cooling waste heat and tail gas waste heat utilization circulating system of the truck engine is formed;
the liquid-water heat exchanger 3 is sequentially connected with the cooling liquid radiator 4, the cooling liquid circulating pump 1 and the truck engine 2 through a pipeline b16 to form a closed loop, so that a truck engine cooling waste heat utilization circulating system is formed;
the system further comprises a second compressor 12, the second compressor 12 is sequentially connected with the condenser 13, the first throttling mechanism 7, the air side evaporator 8 and the first compressor 9 through a pipeline d18 to form a loop, one end of the high-temperature evaporator 11 is connected between the condenser 13 and the first throttling mechanism 7 through a second throttling mechanism 10, the other end of the high-temperature evaporator 11 is connected between the second compressor 12 and the first compressor 9 through a pipeline e19 to form a heat pump drying system, and the condenser 13 is arranged in the oven;
an output shaft of the truck engine 2 is respectively connected with a first compressor 9 and a second compressor 12 through a planetary gear mechanism;
line b16 is filled with coolant, line c17 is filled with heating medium, and lines d18 and e19 are filled with refrigerant R134 a.
As shown in fig. 2, the planetary gear mechanism includes a main gear 2-1 connected to an output shaft of the truck engine 2, the main gear 2-1 is engaged with a first driven gear 2-2 and a second driven gear 2-3, respectively, an output shaft of the first driven gear 2-2 is connected to the second compressor 12, and an output shaft of the second driven gear 2-3 is connected to the first compressor 9.
The working principle of the engine-driven vehicle-mounted heat pump drying system is as follows:
after a truck arrives at a drying place, agricultural and special products to be dried are placed in a carriage, a truck engine 2 starts to work under the driving of fuel, waste gas discharged by the truck engine 2 transfers heat carried by the waste gas to a heating medium in a pipeline c17 in an air-water heat exchanger 5 and then is discharged, meanwhile, a cooling liquid circulating pump 1 drives low-temperature cooling liquid to enter the truck engine 2 to cool the engine so that the engine works at a proper temperature, the cooling liquid absorbs heat and is heated, then the cooling liquid enters a liquid-water heat exchanger 3 to release the heat to a pipeline c17 and then flows into a cooling liquid radiator 4, and the temperature of the cooling liquid in the cooling liquid radiator 4 is reduced again and then is driven by the cooling liquid circulating pump 1 to enter the truck engine 2 to cool the engine.
The heat medium in the pipeline c17, driven by the circulating water pump 6, first absorbs the waste heat carried by the engine exhaust gas in the gas-water heat exchanger 5, then heats up, then flows to the liquid-water heat exchanger 3 to absorb the engine cooling waste heat, and then heats up again, and then flows to the high-temperature evaporator 11 to release heat to the refrigerant, and then continues to absorb and release heat under the drive of the circulating water pump 6.
An output shaft of a truck engine 2 is connected with a main gear 2-1, the main gear 2-1 is respectively meshed with a driven gear I2-2 and a driven gear II 2-3, an output shaft of the driven gear I2-2 drives a second compressor 12 to work, and an output shaft of the driven gear II 2-3 drives a first compressor 9 to work. Therefore, when the fuel-driven truck engine 2 is operated, the first compressor 9 and the second compressor 12 are simultaneously operated.
The gaseous high boiling point refrigerant discharged from the second compressor 12 is condensed into saturated or supercooled refrigerant liquid in the condenser 13, and at the same time, heat is released to dry the agricultural and special products, a part of the saturated or supercooled refrigerant liquid enters the first throttling mechanism 7 to be throttled to form low-pressure gas-liquid two-phase refrigerant fluid, the low-pressure gas-liquid two-phase refrigerant fluid then enters the air-side evaporator 8 to absorb heat in the air to become low-pressure saturated or superheated refrigerant vapor, and the saturated or superheated refrigerant vapor is sucked by the first compressor 9 and becomes medium-pressure superheated refrigerant vapor after being compressed.
The other part of the saturated or subcooled refrigerant liquid flowing out of the condenser 13 enters the second throttling mechanism 10 for throttling to form medium-pressure gas-liquid two-phase refrigerant fluid, and the medium-pressure gas-liquid two-phase refrigerant fluid then enters the heat carried by the heating medium in the pipeline c17 of the high-temperature evaporator 11 to become medium-pressure saturated or superheated refrigerant vapor.
The medium pressure superheated or saturated refrigerant vapor discharged from the first compressor 9 is mixed with the medium pressure saturated or superheated refrigerant vapor discharged from the high temperature evaporator 11, sucked by the second compressor 12, compressed to be superheated refrigerant vapor, and discharged again to the condenser 13 to release heat and dry the agricultural and specialty products.
Through the mode, the drying system of the engine-driven vehicle-mounted heat pump can firstly dry the farm product at the place nearest to the farm product along with the truck, and the farm product is lighter in weight, smaller in volume and easier to store after being dried, so that the quality of the farm product is higher, and meanwhile, more farm products are transported in the same space, and the transportation cost is reduced; the invention has the advantages that the freight car fuel is completely used as the driving energy, the drying operation can be carried out in the region where the power grid is not popularized, the dependence of the heat pump dryer on the power grid is eliminated, the energy released by the fuel can be effectively utilized in the final drying process, the heat can be absorbed from the air, and the energy-saving and environment-friendly effects are obvious.

Claims (7)

1. Vehicle-mounted heat pump drying system driven by engine, its characterized in that: the system comprises a truck engine (2), wherein the truck engine (2) is connected with a gas-water heat exchanger (5) through a pipeline a (15) to form a truck engine tail gas waste heat utilization circulating system;
the gas-water heat exchanger (5) is sequentially connected with the liquid-water heat exchanger (3), the high-temperature evaporator (11) and the circulating water pump (6) through a pipeline c (17) to form a closed loop, so that a truck engine cooling waste heat and tail gas waste heat utilization circulating system is formed;
the liquid-water heat exchanger (3) is sequentially connected with the cooling liquid radiator (4), the cooling liquid circulating pump (1) and the truck engine (2) through a pipeline b (16) to form a closed loop, so that a truck engine cooling waste heat utilization circulating system is formed;
still include second compressor (12), second compressor (12) connect gradually through pipeline d (18) and condenser (13), first throttle mechanism (7), air side evaporimeter (8), first compressor (9) and constitute the return circuit, the one end of high temperature evaporimeter (11) is passed through second throttle mechanism (10) and is connected between condenser (13) and first throttle mechanism (7), the other end of high temperature evaporimeter (11) passes through pipeline e (19) and connects between second compressor (12) and first compressor (9), forms heat pump drying system.
2. The engine-driven on-board heat pump drying system of claim 1, wherein: and an output shaft of the truck engine (2) is respectively connected with the first compressor (9) and the second compressor (12) through a planetary gear mechanism.
3. The engine-driven on-board heat pump drying system of claim 2, wherein: the planetary gear mechanism comprises a main gear (2-1) connected with an output shaft of a truck engine (2), the main gear (2-1) is respectively meshed with a first driven gear (2-2) and a second driven gear (2-3), an output shaft of the first driven gear (2-2) is connected with a second compressor (12), and an output shaft of the second driven gear (2-3) is connected with a first compressor (9).
4. The engine-driven on-board heat pump drying system of claim 1, wherein: the condenser (13) is arranged in the oven.
5. The engine-driven on-board heat pump drying system of claim 1, wherein: the pipeline b (16) is filled with cooling liquid.
6. The engine-driven on-board heat pump drying system of claim 1, wherein: and a heating medium is filled in the pipeline c (17).
7. The engine-driven on-board heat pump drying system of claim 1, wherein: the lines d (18) and e (19) are filled with refrigerant R134 a.
CN202010442555.7A 2020-05-22 2020-05-22 Vehicle-mounted heat pump drying system driven by engine Pending CN111578684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010442555.7A CN111578684A (en) 2020-05-22 2020-05-22 Vehicle-mounted heat pump drying system driven by engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010442555.7A CN111578684A (en) 2020-05-22 2020-05-22 Vehicle-mounted heat pump drying system driven by engine

Publications (1)

Publication Number Publication Date
CN111578684A true CN111578684A (en) 2020-08-25

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040018864A1 (en) * 2002-07-19 2004-01-29 Ho Yun Ren Dual power path drive for a rotating threshing rotor of an agricultural combine and method for re-engaging the same
CN105783485A (en) * 2016-04-12 2016-07-20 南京师范大学 Driving heat pump driving device of internal combustion engine
CN207095084U (en) * 2017-08-07 2018-03-13 珠海格力电器股份有限公司 Heat pump system and heat pump drying system
CN109945292A (en) * 2019-03-18 2019-06-28 山东大学 Double heat source two stages of compression heat pump hot-water systems and method with auxiliary compressor
CN110686472A (en) * 2019-10-17 2020-01-14 陕西理工大学 Vehicle-mounted heat pump drying system capable of utilizing waste heat of engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040018864A1 (en) * 2002-07-19 2004-01-29 Ho Yun Ren Dual power path drive for a rotating threshing rotor of an agricultural combine and method for re-engaging the same
CN105783485A (en) * 2016-04-12 2016-07-20 南京师范大学 Driving heat pump driving device of internal combustion engine
CN207095084U (en) * 2017-08-07 2018-03-13 珠海格力电器股份有限公司 Heat pump system and heat pump drying system
CN109945292A (en) * 2019-03-18 2019-06-28 山东大学 Double heat source two stages of compression heat pump hot-water systems and method with auxiliary compressor
CN110686472A (en) * 2019-10-17 2020-01-14 陕西理工大学 Vehicle-mounted heat pump drying system capable of utilizing waste heat of engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
***: "《汽车维修快速入门 汽车电工快速入门》", 30 September 2015, 湖南科学技术出版社 *

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Application publication date: 20200825