CN118499990B - Multi-energy driving air source heat pump - Google Patents
Multi-energy driving air source heat pump Download PDFInfo
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- CN118499990B CN118499990B CN202410957008.0A CN202410957008A CN118499990B CN 118499990 B CN118499990 B CN 118499990B CN 202410957008 A CN202410957008 A CN 202410957008A CN 118499990 B CN118499990 B CN 118499990B
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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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/08—Adaptations for driving, or combinations with, pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
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- 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
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/006—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for driven by steam engines
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- 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
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
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- 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
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention belongs to the field of air source heat pumps, and particularly relates to a multi-energy driving air source heat pump; the solar energy is utilized to reduce the electricity consumption of the air energy heat pump during operation, and the air energy heat pump has the advantages of high energy efficiency and low operation cost. The technical proposal comprises: variable frequency motor, turbine mechanism, coupler, compressor, evaporimeter, expansion valve and radiator. The turbine mechanism includes an output shaft. The coupler comprises a first input shaft, a second input shaft and a coupling output shaft, the output shaft of the variable frequency motor is connected with the first input shaft, and the output shaft of the steam turbine mechanism is connected with the second input shaft; the first input shaft receives power input from the variable frequency motor, the second input shaft receives power input from the steam turbine mechanism, and the power of the variable frequency motor and the power of the steam turbine mechanism are coupled and then output through the coupling output shaft. The compressor is connected with the coupling output shaft. The evaporator is in communication with the compressor. The expansion valve is in communication with the evaporator. The radiator is communicated with the expansion valve, and the radiator is communicated with the compressor.
Description
Technical Field
The invention belongs to the field of air source heat pumps, and particularly relates to a multi-energy driving air source heat pump.
Background
The air energy heat pump has the advantages of high energy efficiency and convenient use, and is widely used in hotels, markets and families.
Air-source heat pumps are generally applied to rice space, and electric power or natural gas is used as energy. The air energy heat pump is an energy-saving device capable of flowing heat from low-level heat source air to high-level heat source, has the advantages of environmental protection and energy saving, and is one of heating modes recommended in northern areas of China. In addition, based on the operation principle of the air energy heat pump, the air energy heat pump can be used as refrigeration equipment in summer, and has the characteristics of simple maintenance, convenient use and high safety coefficient, thereby having higher attraction to hotels, markets and the like.
Coal is mostly adopted in heating in north of China, and the method has the characteristics of serious air pollution and low heating cost. The air energy heat pump generally operates by adopting electric power or natural gas, and part of the air energy heat pump can adopt fuel oil, so that the air energy heat pump has the problem of higher energy cost although the air energy heat pump is beneficial to environmental protection, and is not beneficial to popularization of the air energy heat pump.
In the prior art, there is a mode of comprehensively utilizing solar energy and an air-source heat pump, for example, one is to supply heat to an indoor space together with heat energy of the solar energy hot water and the air-source heat pump, or to comprehensively drive the air-source heat pump to operate with commercial power after solar power generation is adopted. The first method has the defect that solar energy cannot be utilized for indoor cooling, and the second method has the problem of low energy utilization efficiency.
Disclosure of Invention
In order to overcome the defects in the related art, the invention provides a multi-energy driving air source heat pump. The solar energy is utilized to reduce the electricity consumption of the air energy heat pump during operation, and the air energy heat pump has the advantages of high energy efficiency and low operation cost.
In one aspect, some embodiments of the present invention provide a multi-energy driven air source heat pump. The multi-energy driving air source heat pump comprises: variable frequency motor, turbine mechanism, coupler, compressor, evaporimeter, expansion valve and radiator. Wherein, the turbine mechanism includes the output shaft. The coupler comprises a first input shaft, a second input shaft and a coupling output shaft, wherein the output shaft of the variable frequency motor is connected with the first input shaft, and the output shaft of the steam turbine mechanism is connected with the second input shaft; the coupler is configured to: the power input from the variable frequency motor is received through the first input shaft, the power input from the steam turbine mechanism is received through the second input shaft, and the power of the variable frequency motor and the power of the steam turbine mechanism are coupled and then output through the coupling output shaft. A compressor is coupled to the coupling output shaft. An evaporator is in communication with the compressor. An expansion valve is in communication with the evaporator. A radiator is in communication with the expansion valve, and the radiator is also in communication with the compressor.
Preferably, the turbine mechanism further comprises: the solar water heater comprises a water storage tank, a solar water heater, a steam turbine part and a condensing part. The upper end of the water storage tank is provided with an air pressure safety valve. The solar water heater is communicated with the water storage tank. The steam turbine part is communicated with the solar water heater, and a rotor center shaft of the steam turbine part is fixedly connected with an output shaft of the steam turbine mechanism in a coaxial manner. The condensing piece is communicated with the steam turbine piece, and the condensing piece is also communicated with the water storage tank.
Preferably, the turbine member includes: turbine housing, nozzle and rotor. The steam turbine shell is of a tubular structure, one end of the steam turbine shell is provided with a drain hole and an exhaust hole, and the drain hole is communicated with the water storage tank. The inner wall of the steam turbine shell is provided with a plurality of nozzles, and the nozzles are communicated with the solar water heater. The rotor set up in inside the turbine shell, the rotor both ends with the turbine shell passes through the bearing and connects, be provided with a plurality of blades on the rotor, a plurality of blades with a plurality of the nozzle suits, a plurality of the nozzle receives the hot water from solar water heater and turns into steam, steam drive the rotor rotates. The air extraction piece is communicated with one end of the steam turbine shell and is configured to extract steam in the steam turbine shell, and the air extraction piece is also communicated with the condensing piece.
Preferably, the condensing element comprises: condensing shell and heat exchanger. The heat exchanger set up in the shell of condensing, the cold medium import of heat exchanger, cold medium export all communicate with the cold water tank, the cold medium import with be provided with the driving pump on the pipeline between the cold water tank, the heat medium import of heat exchanger with the exhaust hole intercommunication of turbine shell, the heat medium export of heat exchanger with the storage water tank intercommunication.
Preferably, the coupler further comprises: the planetary gear comprises a central wheel, a planetary wheel carrier, an outer ring, a driving gear and a driving gear. The center shaft of the center wheel is connected with the first input shaft, a first brake is arranged on the center wheel, and a first clutch is arranged between the center wheel and the first input shaft. The planet carrier comprises a plurality of planet gears, and is fixedly connected with the coupling output shaft. The outer ring is arranged on the outer side of the planet carrier, the outer ring, the planet carrier and the central wheel form a planetary gear train, and a second brake is arranged on the outer side of the outer ring. The driving gear is fixedly connected with the outer ring in a coaxial way. The driving gear is meshed with the driving gear, a central shaft of the driving gear is connected with the second input shaft, and a second clutch is arranged between the driving gear and the second input shaft.
Preferably, the multi-energy driving air source heat pump further comprises a stepless speed change gear box, and the stepless speed change gear box is arranged between the steam turbine mechanism and the second input shaft.
Preferably, the multi-energy driving air source heat pump further comprises a rotary encoder, wherein the rotary encoder is arranged at one end of the rotor of the steam turbine mechanism far away from the output shaft, and the rotary encoder is configured to collect the rotation speed of the output shaft of the steam turbine mechanism.
Preferably, the multi-energy driving air source heat pump further comprises a controller, wherein the controller is electrically connected with the variable frequency motor, the rotary encoder, the control end of the continuously variable transmission gearbox, the first clutch, the second clutch, the first brake and the second brake.
In another aspect, some embodiments of the present invention further provide a method for driving an air source heat pump with multiple energy sources, which is applicable to the above multi-energy source driving air source heat pump, and the multi-energy source driving air source heat pump includes a first power source, a second power source, and a compressor.
The method for driving the air source heat pump by the multiple energy sources comprises the following steps: and coupling the output of the first power source and the output of the second power source, then jointly outputting the coupled output and driving the compressor to operate. And under the condition that the input power of the compressor is determined, the first power source adjusts the self output power according to the output power of the second power source.
Preferably, the first power source comprises a variable frequency motor, and the second power source adopts solar energy or wind energy.
The invention has the beneficial effects that:
The variable frequency motor and the turbine mechanism are adopted, and the variable frequency motor and the turbine mechanism are output and coupled through the coupler to jointly drive the compressor to operate. The turbine mechanism adopts solar energy, and under the condition that the input power required by the compressor is determined, the variable frequency motor adaptively reduces the self output power according to the output power of the turbine mechanism, so that the electric energy consumption of the air energy heat pump is reduced, and the air energy heat pump has the advantages of energy conservation and low use cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a block diagram of a turbine mechanism of the present invention;
FIG. 3 is a block diagram of a turbine component of the present invention;
FIG. 4 is a connection diagram of the coupler, variable frequency motor and turbine mechanism of the present invention;
FIG. 5 is another connection diagram of the coupler, variable frequency motor and turbine mechanism of the present invention;
fig. 6 is a flow chart of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the following description of the embodiments accompanied with the accompanying drawings will be given in detail. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In one aspect, as shown in fig. 1 and 4, some embodiments of the present invention provide a multi-energy driven air source heat pump. The multi-energy driving air source heat pump comprises: variable frequency motor 1, turbo mechanism 2, coupler 3, compressor 4, evaporimeter 5, expansion valve 6 and radiator 7. Wherein the turbine mechanism 2 comprises an output shaft. The coupler 3 comprises a first input shaft 31, a second input shaft 32 and a coupling output shaft 33, the output shaft of the variable frequency motor 1 is connected with the first input shaft 31, and the output shaft of the steam turbine mechanism 2 is connected with the second input shaft 32; the coupler 3 is configured to: the power input from the variable frequency motor 1 is received through a first input shaft 31, the power input from the steam turbine mechanism 2 is received through a second input shaft 32, and the power of the variable frequency motor 1 and the power of the steam turbine mechanism 2 are coupled and then output through a coupling output shaft 33. The compressor 4 is connected to the coupling output shaft 33. An evaporator 5 is in communication with the compressor 4. An expansion valve 6 communicates with the evaporator 5. A radiator 7 is in communication with the expansion valve 6, and the radiator 7 is also in communication with the compressor 4.
In some embodiments, as shown in fig. 1, 2 and 3, the turbine mechanism 2 further includes: a water storage tank 21, a solar water heater 22, a steam turbine part 23 and a condensing part 24. The upper end of the water storage tank 21 is provided with an air pressure safety valve 25. The solar water heater 22 is communicated with the water storage tank 21. The steam turbine part 23 is communicated with the solar water heater 22, and a central shaft of a rotor 233 of the steam turbine part 23 is fixedly connected with an output shaft of the steam turbine mechanism 2 in a coaxial manner. The condensing piece 24 is communicated with the steam turbine piece 23, and the condensing piece 24 is also communicated with the water storage tank 21.
In some examples, the compressor 4 further includes a housing, where the variable frequency motor 1, the coupler 3, and the turbine 23 are disposed in the housing, that is, the variable frequency motor 1, the coupler 3, the turbine 23, and the compressor 4 are integrally disposed in the same sealed space, so that leakage of the refrigerant in the compressor 4 can be avoided.
In the application process, for example, when indoor heating is performed, a determined temperature is set in the indoor, the multi-energy-source driving air source heat pump starts to continuously and stably output until the indoor temperature reaches the determined temperature, and then the power of the multi-energy-source driving air source heat pump is reduced and frequency conversion work is performed.
The multi-energy driving air source heat pump can perform operation with relatively stable power according to the determined temperature, namely, the output power of the coupler 3 can be determined, the output power of the coupler 3 can be the sum of the output power of the steam turbine mechanism 2, the output power of the variable frequency motor 1 and the loss power, wherein the loss power can be obtained through a test and the like and is compensated by the variable frequency motor 1, and the compensation of the loss power is not described in detail herein. In the application, the output power of the variable frequency motor 1 can be adaptively controlled according to the output power of the steam turbine mechanism 2, so as to ensure that the output power of the coupler 3 meets the power of the multi-energy driving air source heat pump.
Specifically, the turbine member 23 receives high-temperature water from the solar water heater 22, and the rotor 233 of the turbine member 23 is driven to rotate by the high-temperature water. An output shaft of the steam turbine mechanism 2 is connected with a second input shaft 32 of the coupler 3, so that the steam turbine member 23 drives the second input shaft 32 of the coupler 3 to rotate. It can be understood that the solar water heater 22 receives light energy to prepare high temperature water, and the flow and temperature of the high temperature water received by the turbine 23 change at a stable speed, so that the output power of the turbine 23 also changes at a relatively stable speed, so that the variable frequency motor 1 can adjust its own output power conveniently.
After the high-temperature water enters the steam turbine part 23, steam and water are formed, the steam does work on the rotor 233 of the steam turbine part 23 and drives the rotor 233 to rotate, part of the steam condenses into water after doing work, the other part of the steam enters the condensing part 24 and enters the water storage tank 21, and the water in the steam turbine part 23 can be led into the water storage tank 21.
The solar water heater 22 may adopt a plurality of solar evacuated collector tubes, and the water outlets of the solar evacuated collector tubes are communicated with the steam turbine member 23.
In some embodiments, as shown in fig. 2 and 3, the turbine 23 includes: a turbine housing 231, nozzles 232, and a rotor 233. The turbine housing 231 has a tubular structure, and a drain hole and an exhaust hole are formed at one end of the turbine housing 231, and the drain hole is communicated with the water storage tank 21. The inner wall of the turbine housing 231 is provided with a plurality of nozzles 232, and the plurality of nozzles 232 are communicated with the solar water heater 22. The rotor 233 set up in inside the turbine housing 231, rotor 233 both ends with turbine housing 231 passes through the bearing and connects, be provided with a plurality of blades on the rotor 233, a plurality of blades with a plurality of nozzle 232 suits, a plurality of nozzle 232 receive from solar water heater 22 hot water and turn into steam, the steam drive rotor 233 rotates. An air extraction member is in communication with one end of the turbine housing 231, the air extraction member being configured to extract steam from within the turbine housing 231, the air extraction member also being in communication with the condensing member 24.
In some examples, the turbine housing 231 is a tube with two ends closed, and a rotor 233 is disposed inside, where the rotor 233 may include: the center shaft and the blades are straight rods, a plurality of blade groups are fixed on the center shaft along the extending direction of the center shaft, and each blade group can be formed by fixedly arranging a plurality of blades in the circumferential direction of the center shaft. The inner wall of the turbine housing 231 opposite to each blade group is also fixed with a plurality of nozzles 232, the plurality of nozzles 232 can spray high-temperature water and form high-temperature steam, the rotor 233 is driven to rotate in the process that the high-temperature steam moves to the exhaust hole, and the inner diameter of a pipeline for communicating the exhaust hole and the exhaust hole with the condensing part 24 is 0.5-1 times of the inner diameter of the turbine housing 231.
The high-temperature steam forms high pressure inside the turbine housing 231 to facilitate the rotation of the rotor 233, and in addition, the drain hole is communicated with the water storage tank 21, so as to avoid interference of the high pressure of the turbine housing 231 to the water storage tank 21, a first pressure balance valve 26 can be arranged on a pipeline between the drain hole and the water storage tank 21; similarly, a second pressure balance valve 27 is arranged on the pipeline between the condensing unit 24 and the water storage tank 21.
In addition, in order to facilitate the high-temperature water in the solar water heater 22 to enter the steam turbine part 23, a centrifugal pump 28 may be disposed between the solar water heater 22 and the steam turbine part 23, so as to facilitate the high-temperature water to enter the steam turbine part 23.
In some embodiments, the condensing element comprises: condensing shell and heat exchanger. The heat exchanger is arranged in the condensing shell, a cold medium inlet and a cold medium outlet of the heat exchanger are both communicated with the cold water tank 29, a driving pump is arranged on a pipeline between the cold medium inlet and the cold water tank 29, a heat medium inlet of the heat exchanger is communicated with an exhaust hole of the turbine shell 231, and a heat medium outlet of the heat exchanger is communicated with the water storage tank 21.
In some examples, the cold water tank 29 and the water storage tank 21 are both filled with brine, and after the cooling water in the cold water tank 29 circulates for a plurality of times through the heat exchanger, the cooling water can be used as the supplementing water of the water storage tank 21 after the temperature of the cooling water is higher than 80 ℃. The cold water tank 29 can accelerate the liquefaction of high-temperature steam, and is beneficial to recycling.
The heat medium outlet of the heat exchanger may be communicated with the upper portion of the water storage tank 21, i.e., condensed water and steam discharged from the heat medium outlet enter the water storage tank 21 at a position higher than the water level in the water storage tank 21, and when the pressure in the water storage tank 21 is excessively high, the water storage tank 21 may discharge the steam through the air pressure relief valve 25.
In some embodiments, as shown in fig. 4, the coupler 3 further comprises: a sun gear 34, a planet carrier 35, an outer race 36, a drive gear 37 and a drive gear 38. The center shaft of the center wheel 34 is connected with the first input shaft 31, a first brake 39 is arranged on the center wheel 34, and a first clutch 310 is arranged between the center wheel 34 and the first input shaft 31. The planetary gear carrier 35 includes a plurality of planetary gears, and the planetary gear carrier 35 is fixedly connected to the coupling output shaft 33. The outer ring 36 is disposed outside the planetary carrier 35, the outer ring 36, the planetary carrier 35 and the sun gear 34 form a planetary gear train, and a second brake 311 is disposed outside the outer ring 36. The driving gear 37 is fixedly connected with the outer ring 36 coaxially. The driving gear 38 is meshed with the driving gear 37, a central shaft of the driving gear 38 is connected with the second input shaft 32, and a second clutch 312 is disposed between the driving gear 38 and the second input shaft 32.
In some examples, the center wheel 34 is connected with an output shaft of the variable frequency motor 1, and the outer ring 36 is connected with the steam turbine mechanism 2, wherein the rotation direction of the center wheel 34 driven by the variable frequency motor 1 is opposite to that of the outer ring 36 driven by the steam turbine mechanism 2, so that the center wheel 34 and the outer ring 36 can simultaneously drive the planet carrier 35 to rotate, and the output after the coupling of the two power inputs is realized.
In a specific operation process, the adaptive control can be performed according to the output power of the steam turbine mechanism 2. For example, when the output power of the turbine 23 is greater than or equal to the operating power of the multi-energy driving air source heat pump, the first clutch 310 is set to an open state, the first brake 39 is set to a locked state, the second clutch 312 is set to a closed state, and the second brake 311 is set to an open state, at this time, the turbine 23 drives the outer wheel to rotate, and the planetary carrier 35 is driven to operate by the outer wheel. Or when the output power of the turbine part 23 is smaller than the working power of the multi-energy driving air source heat pump, the first clutch 310 is set to be in a closed state, the first brake 39 is set to be in an open state, the second clutch 312 is set to be in a closed state, and the second brake 311 is set to be in an open state, at this time, the variable frequency motor 1 drives the center wheel 34 to rotate, the turbine part 23 drives the outer wheel to rotate, the planet wheel carrier 35 is driven by the outer wheel to operate, and it is understood that the rotating speed of the variable frequency motor 1 can be adaptively adjusted according to the output rotating speed of the turbine part 23, so that the output power of the turbine part 23 meets the requirement of the working power of the multi-energy driving air source heat pump.
In some embodiments, as shown in fig. 5, the multi-energy driven air source heat pump further includes a continuously variable gearbox 8, and the continuously variable gearbox 8 is disposed between the turbine mechanism 2 and the second input shaft 32.
In some examples, there may be a situation where the output shaft of the turbo mechanism 2 is rotating at a high speed and the torque is too low, and there may be a situation where the output shaft of the turbo mechanism 2 is rotating at a speed that does not match the power of the compressor 4. A continuously variable gear is provided between the turbo mechanism 2 and the second input shaft 32, and can be adaptively adjusted according to the rotation speed of the output shaft of the turbo mechanism 2 and the power of the compressor 4. Or when the output torque of the output shaft of the steam turbine mechanism 2 is too low, the rotation speed can be reduced and the torque can be increased through the stepless speed change gear, so that the forward acting of the steam turbine mechanism 2 can be realized.
In some embodiments, the multi-energy driven air source heat pump further comprises a rotary encoder disposed at an end of the rotor 233 of the turbine mechanism 2 remote from the output shaft, the rotary encoder configured to collect the output shaft rotational speed of the turbine mechanism 2.
The multi-energy driving air source heat pump further comprises a controller, wherein the controller is electrically connected with the variable frequency motor 1, the rotary encoder, the control end of the continuously variable transmission gearbox 8, the first clutch 310, the second clutch 312, the first brake 39 and the second brake 311.
It will be appreciated that in order to facilitate the control of the continuously variable transmission, it is also necessary to collect data on the rotation angle of the output shaft of the turbine mechanism 2, that is, to install a rotary encoder on the output shaft of the turbine mechanism 2. In addition, the present application requires a controller electrically connected to the rotary encoder, the continuously variable gear, the first clutch 310, the second clutch 312, and the second brake 311.
In the present application, the first clutch 310, the second clutch 312 and the second brake 311 are all of the prior art, and specific structures of the first clutch 310, the second clutch 312 and the second brake 311 are not described herein.
In another aspect, as shown in fig. 6, some embodiments of the present invention further provide a method for driving an air source heat pump with multiple energy sources, which is applicable to the above-mentioned air source heat pump with multiple energy sources, and the air source heat pump with multiple energy sources includes a first power source, a second power source, and a compressor.
The method for driving the air source heat pump by the multiple energy sources comprises the following steps:
S1, coupling the output of the first power source and the output of the second power source, and then jointly outputting the coupled output and driving the compressor to operate.
And S2, under the condition that the input power of the compressor is determined, the first power source adjusts the self output power according to the output power of the second power source.
The first power source comprises a variable frequency motor, and the second power source adopts solar energy or wind energy.
In some embodiments, the first power source generally adopts a variable frequency motor, the second power source uses solar energy as an example, the second power source heats brine-free water by solar energy, high-temperature brine-free water is gasified by a nozzle and then drives a turbine mechanism to operate, an output shaft of the turbine mechanism and an output shaft of the variable frequency motor jointly drive a coupler to operate, so that reasonable utilization of solar energy is realized, and meanwhile, constant control of output power of a compressor is realized through supplementary input of the variable frequency motor.
In the prior art, there are many devices capable of coupling the output of the first power source and the output of the second power source and then jointly outputting the same, and in the method for driving an air source heat pump by using multiple energy sources according to the present application, the device capable of coupling the output of the first power source and the output of the second power source and then jointly outputting the same is not limited to the above-mentioned coupler, and other devices capable of implementing coupling output of two power sources can be applied to the present application.
The application can effectively utilize solar energy, reduce the electric energy consumption during use and reduce the electricity expense expenditure of users.
In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (6)
1. The multi-energy source driving air source heat pump is characterized by comprising:
A variable frequency motor;
The turbine mechanism comprises an output shaft;
The coupler comprises a first input shaft, a second input shaft and a coupling output shaft, wherein the output shaft of the variable frequency motor is connected with the first input shaft, and the output shaft of the steam turbine mechanism is connected with the second input shaft; the coupler is configured to: receiving power input from the variable frequency motor through a first input shaft, receiving power input from the steam turbine mechanism through a second input shaft, coupling the power of the variable frequency motor with the power of the steam turbine mechanism, and outputting the coupled power through a coupling output shaft;
The compressor is connected with the coupling output shaft and further comprises a shell, and the variable frequency motor, the coupler and the steam turbine part are all arranged in the shell;
An evaporator in communication with the compressor;
An expansion valve in communication with the evaporator;
A radiator in communication with the expansion valve, and the radiator is also in communication with the compressor;
Wherein, the turbine mechanism still includes: the solar water heater comprises a water storage tank, a solar water heater, a steam turbine part and a condensing part; the upper end of the water storage tank is provided with an air pressure safety valve, the solar water heater is communicated with the water storage tank, the steam turbine part is communicated with the solar water heater, a rotor center shaft of the steam turbine part is fixedly connected with an output shaft of the steam turbine mechanism in a coaxial way, the condensing part is communicated with the steam turbine part, and the condensing part is also communicated with the water storage tank;
The turbine part includes: a turbine housing, a nozzle, and a rotor; the steam turbine shell is of a tubular structure, one end of the steam turbine shell is provided with a drain hole and an exhaust hole, the drain hole is communicated with the water storage tank, a plurality of nozzles are arranged on the inner wall of the steam turbine shell and are communicated with the solar water heater, the rotor is arranged inside the steam turbine shell, two ends of the rotor are connected with the steam turbine shell through bearings, a plurality of blades are arranged on the rotor and are matched with the nozzles, the nozzles receive hot water from the solar water heater and convert the hot water into steam, and the steam drives the rotor to rotate.
2. The multi-energy driven air source heat pump of claim 1 wherein the condensing element comprises:
A condensing shell;
The heat exchanger, the heat exchanger set up in the shell of condensing, the cold medium import of heat exchanger, cold medium export all communicate with the cold water tank, the cold medium import with be provided with the driving pump on the pipeline between the cold water tank, the heat medium import of heat exchanger with the exhaust hole intercommunication of turbine shell, the heat medium export of heat exchanger with the storage water tank intercommunication.
3. The multi-energy driven air source heat pump according to any one of claims 1 or 2, wherein the coupler further comprises:
the center wheel is connected with the first input shaft through a center shaft, a first brake is arranged on the center wheel, and a first clutch is arranged between the center wheel and the first input shaft;
The planet carrier comprises a plurality of planet gears, and is fixedly connected with the coupling output shaft;
the outer ring is arranged on the outer side of the planet carrier, the outer ring, the planet carrier and the center wheel form a planetary gear train, and a second brake is arranged on the outer side of the outer ring;
The driving gear is coaxially and fixedly connected with the outer ring;
The driving gear is meshed with the driving gear, a central shaft of the driving gear is connected with the second input shaft, and a second clutch is arranged between the driving gear and the second input shaft.
4. The multi-energy driven air source heat pump of claim 3 further comprising a continuously variable gearbox, wherein the continuously variable gearbox is disposed between the turbine mechanism and the second input shaft.
5. The multi-energy driven air source heat pump of claim 4 further comprising a rotary encoder disposed at an end of the turbine mechanism rotor distal from the output shaft, the rotary encoder configured to collect the output shaft rotational speed of the turbine mechanism.
6. The multi-energy driven air source heat pump of claim 5 further comprising a controller electrically connected to the variable frequency motor, the rotary encoder, a control end of the infinitely variable speed gearbox, the first clutch, the second clutch, the first brake, and the second brake.
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