CN116294274A - Energy conversion equipment and method - Google Patents
Energy conversion equipment and method Download PDFInfo
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- CN116294274A CN116294274A CN202310276806.2A CN202310276806A CN116294274A CN 116294274 A CN116294274 A CN 116294274A CN 202310276806 A CN202310276806 A CN 202310276806A CN 116294274 A CN116294274 A CN 116294274A
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
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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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- Life Sciences & Earth Sciences (AREA)
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- Other Air-Conditioning Systems (AREA)
Abstract
The invention provides energy conversion equipment, which comprises a first heat exchange system connected with external energy, a second heat exchange system arranged at a user side and a supply system for providing circulating power for the first heat exchange system and the second heat exchange system; the system also comprises an adjusting system for adjusting the energy conversion and output modes; the adjusting system comprises a conversion module for converting the pipeline connection relation and a switch module for controlling the pipeline connection state. The arrangement of the regulating system ensures that the pipeline connection mode is flexible and changeable, the conversion form and the output direction of energy sources can be changed by operating the conversion module and the switch module, the energy efficiency is higher, and the requirements of actual production and living are met; the first heat exchange system is arranged as a double-source system, so that the defect of low energy supply efficiency of a single-source system due to the influence of factors such as temperature change can be overcome, the equipment can continuously and efficiently convert and output energy sources, and the utilization rate of the energy sources is improved.
Description
Technical Field
The invention belongs to the technical field of heat pumps, and particularly relates to energy conversion equipment and method.
Background
Heat pump technology is a new energy technology attracting attention worldwide in recent years. Pumps are known as mechanical devices that can raise potential energy, such as water pumps that pump water from a low level to a high level. The heat pump is a device which can obtain low-level heat energy from the air, water or soil in nature, and provides high-level heat energy which can be used by people through electric energy to do work.
There are some researches on heat pump systems combining an air source and a water source at present, for example, chinese patent application number CN201610183997.8 discloses a heat pump system combining an air source pump and a water source heat pump, which includes an outdoor air source heat exchanger, a compressor, a working heat exchanger and an expansion valve connected in sequence, wherein the outdoor air source heat exchanger, the compressor, the working heat exchanger and the expansion valve form a closed circulation loop, and the outdoor air source heat exchanger is connected in parallel with the outdoor water source heat exchanger. The pipeline connection flexibility of the double-source heat pump system is low, so that only the energy conversion between the indoor and outdoor is realized, the energy conversion between the outdoor air source pump and the water source heat pump cannot be realized, and the energy efficiency is low. And the requirements of heating in winter and cooling in summer can be met, the utilization rate is low in transitional seasons, and the energy is not utilized efficiently.
Disclosure of Invention
Aiming at the problems of low energy efficiency and low energy utilization rate in the prior art, the invention provides energy conversion equipment which is applicable to different seasons and can realize flexible conversion among different energy sources, thereby improving the energy utilization rate.
The invention adopts the following technical scheme:
an energy conversion device comprises a first heat exchange system connected with external energy, a second heat exchange system arranged at a user side, and a supply system for providing circulating power for the first heat exchange system and the second heat exchange system; the system also comprises an adjusting system for adjusting the energy conversion form and the output direction; the adjusting system comprises a conversion module for converting the pipeline connection relation and a switch module for controlling the pipeline connection state.
Through the technical scheme, the arrangement of the adjusting system enables the pipeline connection relation of the equipment to be flexible and changeable, and different conversion modules and switch modules can be selected to be communicated according to the needs of actual production and life so as to realize efficient energy supply. The device meets the practical requirement, has higher energy efficiency, and increases the possibility of energy conversion forms and output directions compared with the conventional technology, so that the utilization rate of energy is improved.
Preferably, the switching module is provided with a first group of switching valves and a second group of switching valves connected with the first group of switching valves; the first set of switching valves includes a first switching valve and a third switching valve; the second set of switching valves includes a second switching valve and a fourth switching valve.
Through the technical scheme, the first group of conversion valves and the second group of conversion valves are required to be kept in a connection state when the equipment works, but any one of the conversion valves in one group can be connected with any one of the conversion valves in the other group through selecting three different pipeline connection modes, so that the heat exchange system is switched from executing the evaporator or the condenser to executing the condenser or the evaporator, the energy conversion form of the equipment is changed, the equipment can be suitable for different energy requirement conditions, the switching is flexible, and the energy efficiency is improved.
As a preferable scheme, the first heat exchange system is a double-source system and comprises a water source heat exchange subsystem and an air source heat exchange subsystem; the first heat exchange system is provided with an external connection module connected with an external energy source and an internal connection module.
Through the technical scheme, the first heat exchange system is set to be a double-source system, and when the first heat exchange system and the second heat exchange system perform energy conversion, any single system in the double-source system can be determined to be started according to actual conditions, and the double-source system can also be started simultaneously. The device can make up for the defect that a single-source system is possibly low in energy supply efficiency due to the fact that the single-source system is influenced by factors such as air temperature change at a specific time, so that the device can continuously work to meet the requirement of energy use.
Preferably, the external connection module comprises a water source external connection module and an air source external connection module; the water source external connection module is provided with an external water source inlet connected with an external water supply pipe and an external water source outlet connected with an external water return pipe, and is provided with an air source channel connected with an external air source; the internal connection module comprises a water source internal connection module and an air source internal connection module.
As a preferred scheme, the second heat exchange system is provided with a user side connection module connected with the user side and a pipeline connection module connected with the pipeline; the user side connection module is provided with an indoor water source outlet connected with an indoor water supply pipe and an indoor water inlet connected with an indoor water return pipe.
Preferably, the switch module comprises an external switch sub-module for controlling the pipeline connection state between the first heat exchange system and the second heat exchange system, and an internal switch sub-module for controlling the pipeline connection state between the water source heat exchange sub-system and the air source heat exchange sub-system.
As a preferable scheme, the external switch submodule comprises a first group of switches connected with the internal connection module and a second group of switches connected with the pipeline connection module; the internal switch sub-module includes a third set of switches for connecting the water source internal connection module and the air source internal connection module.
Through the technical scheme, the opening and closing states of the first group of switches, the second group of switches and the third group of switches can enable the communication of the pipeline to be changed, so that the equipment is provided with various energy conversion modes and options of the direction of an output party, for example, when the first group of switches and the second group of switches are opened, the first heat exchange system and the second heat exchange system together execute energy conversion work, working media circularly move in a closed loop comprising the first heat exchange system, the second heat exchange system, the supply system and the regulating system, and energy can be input and output from the first heat exchange system and can be input and output from the second heat exchange system; when the first group of switches and the third group of switches are both opened, the second heat exchange system does not perform energy conversion, but the two heat exchange subsystems in the first heat exchange system perform energy conversion, working media circularly move in a closed loop comprising the water source heat exchange subsystem, the air source heat exchange subsystem, the supply system and the regulating system, and energy can be input and output from the water source heat exchange subsystem and can be input and output from the air source heat exchange subsystem. The device has a simple structure, forms different working pipelines by selecting to open or close so as to realize different pipeline connection modes, is simple and convenient to operate, ensures that energy sources have various conversion and output modes, and improves the utilization rate of the energy sources.
Preferably, the supply system is connected with the first heat exchange system and the second heat exchange system;
the supply system comprises a power subsystem for providing power and a flow control subsystem for controlling the flow of working medium to reduce the pressure;
the power subsystem is provided with a compressor, and the flow control subsystem is provided with a throttle expansion valve.
The invention provides an energy conversion method, which is based on the energy conversion equipment and comprises the following steps:
s1, a first group of switches and a second group of switches are opened to communicate a first heat exchange system and a second heat exchange system, and a third group of switches are closed to disconnect a water source heat exchange subsystem and an air source heat exchange subsystem;
s2, outputting a working medium from the first heat exchange system or the second heat exchange system and circularly moving in a pipeline, enabling the power subsystem to act on the working medium to provide circulating power, enabling the working medium to circulate to the second heat exchange system or the first heat exchange system, enabling the second heat exchange system or the first heat exchange system to act on the working medium to realize energy conversion, enabling the flow control subsystem to control the flow of the working medium to reduce the pressure, and enabling the working medium to circulate back to the first heat exchange system or the second heat exchange system.
In step S1, the third group of switches is opened to connect the water source heat exchange subsystem and the air source heat exchange subsystem, and the first group of switches is opened and the second group of switches is closed to disconnect the first heat exchange system and the second heat exchange system;
in step S2, the working medium is output from the water source heat exchange subsystem or the air source heat exchange subsystem and circularly moves in the pipeline, the power subsystem acts on the working medium to provide circulating power, the working medium circulates to the air source heat exchange subsystem or the water source heat exchange subsystem, the air source heat exchange subsystem or the water source heat exchange subsystem acts on the working medium to realize energy conversion, the flow control subsystem controls the flow of the working medium to reduce the pressure, and the working medium circulates back to the water source heat exchange subsystem or the air source heat exchange subsystem.
The invention has the following beneficial effects:
(1) The arrangement of the regulating system enables the pipeline connection mode of the equipment to be flexible and changeable, the conversion form and the output direction of energy sources can be changed by operating the conversion module and the switch module, the energy efficiency is higher, and the requirements of actual production and living are met;
(2) The first heat exchange system is arranged as a double-source system, so that the defect of low energy supply efficiency of a single-source system due to the influence of factors such as temperature change can be overcome, the equipment can continuously and efficiently convert and output energy sources, and the utilization rate of the energy sources is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of an energy conversion apparatus according to the present invention.
Fig. 2 is an embodiment of an energy conversion device according to the present invention.
Fig. 3 is an embodiment of an energy conversion device according to the present invention.
Fig. 4 is an embodiment of an energy conversion device according to the present invention.
Fig. 5 is an embodiment of an energy conversion device according to the present invention.
Reference numerals:
1. a water source heat exchange subsystem; 11. an external water source inlet; 12. an external water source outlet; 13. a first pipeline opening; 14. a second pipeline opening;
2. an air source heat exchange subsystem; 21. a third pipeline opening; 22. a fourth pipeline opening;
3. a power subsystem;
4. a conversion module; 41. a first switching valve; 42. a second switching valve; 43. a third switching valve; 44. a fourth switching valve;
5. a second heat exchange system; 51. a fifth pipeline opening; 52. a sixth pipeline opening; 53. an indoor water source outlet; 54. an indoor water inlet;
6. a flow control subsystem;
7. a switch module; 7-1, a first electric valve; 7-2, a second electric valve; 7-3, a third electric valve; 7-4, a fourth electric valve; 7-5, a fifth electric valve; 7-6, a sixth electric valve; 7-7, a seventh electric valve; 7-8, an eighth electric valve;
a. an external water supply pipe; b. an external return pipe; c. an indoor water supply pipe; d. an indoor return pipe; e. an air source passage.
Detailed Description
The invention is further described below with reference to the drawings and specific examples. Those of ordinary skill in the art will be able to implement the invention based on these descriptions. In addition, the embodiments of the present invention referred to in the following description are typically only some, but not all, embodiments of the present invention. Therefore, all other embodiments, which can be made by one of ordinary skill in the art without undue burden, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
Example 1:
referring to fig. 1, the present embodiment provides an energy conversion apparatus, which includes a first heat exchange system connected to an external energy source, wherein the first heat exchange system is a dual-source system, and includes a water source heat exchange subsystem 1 and an air source heat exchange subsystem 2. The first heat exchange system is set as a double-source system, and when the first heat exchange system and the second heat exchange system perform energy conversion, any single system in the double-source system can be determined to be started according to actual conditions, and the double-source system can also be started at the same time. The device can make up for the defect that a single-source system is possibly low in energy supply efficiency due to the fact that the single-source system is influenced by factors such as air temperature change at a specific time, so that the device can continuously work to meet the energy use requirement.
The first heat exchange system is provided with an external connection module connected with external energy, and the external connection module comprises a water source external connection module and an air source external connection module. The water source external connection module is provided with an external water source inlet 11 connected with an external water supply pipe a and an external water source outlet 12 connected with an external water return pipe b; the air source external connection module is provided with an air source channel e connected with an external air source. The first heat exchange system is further provided with an internal connection module, and the internal connection module comprises a water source internal connection module and an air source internal connection module. The water source internal connection module is respectively connected with the first group of switches and the third group of switches and comprises a first pipeline opening 13 and a second pipeline opening 14, wherein the first pipeline opening 13 is respectively connected with the second electric valve 7-2 and the sixth electric valve 7-6, and the second pipeline opening 14 is respectively connected with the first electric valve 7-1 and the fifth electric valve 7-5; the air source internal connection module is connected with the first group of switches and comprises a third pipeline port 21 and a fourth pipeline port 22, wherein the third pipeline port 21 is connected with the third electric valve 7-3, and the fourth pipeline port 22 is connected with the fourth electric valve 7-4.
The energy conversion equipment further comprises a second heat exchange system arranged on the user side, the second heat exchange system is provided with a user side connection module connected with the user side, and the user side connection module is provided with an indoor water source outlet 53 connected with an indoor water supply pipe c and an indoor water inlet 54 connected with an indoor water return pipe d. The second heat exchange system is further provided with a pipeline connection module connected with a pipeline, the pipeline connection module comprises a fifth pipeline opening 51 and a sixth pipeline opening 52, the fifth pipeline opening 51 is connected with the seventh electric valve 7-7, and the sixth pipeline opening 52 is connected with the eighth electric valve 7-8.
The energy conversion equipment further comprises a supply system for providing circulating power for the first heat exchange system and the second heat exchange system, wherein the supply system is connected with the first heat exchange system and the second heat exchange system respectively and comprises a power subsystem 3 for providing power and a flow control subsystem 6 for controlling the flow of working media to reduce the pressure. The power subsystem 3 is provided with a compressor, which sucks low-temperature low-pressure refrigerant gas from the air suction pipe, drives the piston to compress the refrigerant gas through motor operation, and then discharges high-temperature high-pressure refrigerant gas to the exhaust pipe to power the refrigeration cycle, thereby realizing the cycle from compression to condensation heat release, expansion and evaporation heat absorption. The flow control subsystem 6 is provided with a throttling expansion valve, changes the opening degree in real time along with the change of the load of the evaporator, and controls the flow of working media, so that the liquid working media are converted into a gas-liquid mixture, and conditions are created for evaporation to enable the pipeline to continuously work.
The energy conversion equipment further comprises an adjusting system for adjusting the energy conversion form and the output direction, and the adjusting system comprises a conversion module for converting the pipeline connection relation and a switch module for controlling the pipeline connection state.
The switching module is provided with a first set of switching valves comprising a first switching valve 41 and a third switching valve 43 and a second set of switching valves connected thereto comprising a second switching valve 42 and a fourth switching valve 44. Wherein, the first switching valve 41 and the third switching valve 43 are both connected with the power subsystem 3, the second switching valve 42 is connected with the first set of switches, and the fourth switching valve 44 is connected with the second set of switches and the third set of switches, respectively. The first group of conversion valves and the second group of conversion valves are required to be kept in a connection state when the equipment works, but any one of the conversion valves in one group can be connected with any one of the conversion valves in the other group through selecting three different pipeline connection modes, so that the heat exchange system is switched from an execution evaporator or a condenser to an execution condenser or an evaporator, the energy conversion form and the output direction of the equipment are changed, the equipment can be suitable for different energy requirement conditions, the switching is flexible, and the energy efficiency is improved.
The switch module comprises an outer switch submodule used for controlling the pipeline connection state between the first heat exchange system and the second heat exchange system, and the outer switch submodule comprises a first group of switches connected with the internal connection module and a second group of switches connected with the pipeline connection module. The switch module adopts the high-temperature-resistant, chemical corrosion-resistant, wear-resistant, durable and water hammer impact-resistant electric valve as a switch device, and has the advantages of bidirectional circulation, simple operation, stable control and long service life. The first group of switches comprises a first electric valve 7-1, a second electric valve 7-2, a third electric valve 7-3 and a fourth electric valve 7-4, wherein the first electric valve 7-1 and the fourth electric valve 7-4 are connected with a flow control subsystem 6, and the second electric valve 7-2 and the third electric valve 7-3 are connected with a second switching valve 42; the second set of electric switches comprises a seventh electric valve 7-7 and an eighth electric valve 7-8, two side ports of the seventh electric valve 7-7 are respectively connected with the fourth switching valve 44 and the fifth pipeline port 51, and two side ports of the eighth electric valve 7-8 are respectively connected with the flow control subsystem 6 and the sixth pipeline port 52.
The switch module further comprises an inner switch sub-module for controlling the pipeline connection state between the water source heat exchange sub-system 1 and the air source heat exchange sub-system 2, and the inner switch sub-module comprises a third group of switches for connecting the water source internal connection module and the air source internal connection module. The third group of switches comprises a fifth electric valve 7-5 and a sixth electric valve 7-6, two side ports of the fifth electric valve 7-5 are respectively connected with the second pipeline opening 14 and the fourth switching valve 44, and two side ports of the sixth electric valve 7-6 are respectively connected with the first pipeline opening 13 and the flow control subsystem 6.
The open-close states of the first group of switches, the second group of switches and the third group of switches can change the communication of the pipeline, so that the equipment has the possibility of various energy conversion forms and output directions, for example, when the first group of switches and the second group of switches are both opened, the first heat exchange system and the second heat exchange system perform energy conversion work together, working medium circularly moves in a closed loop comprising the first heat exchange system, the second heat exchange system, the supply system and the regulating system, and energy can be input and output from the first heat exchange system and also can be input and output from the second heat exchange system; when the first group of switches and the third group of switches are both opened, the second heat exchange system does not perform energy conversion, but the two heat exchange subsystems in the first heat exchange system perform energy conversion, working media circularly move in a closed loop comprising the water source heat exchange subsystem 1, the air source heat exchange subsystem 2, the supply system and the regulating system, and energy can be input and output from the water source heat exchange subsystem 1 and can be input and output from the air source heat exchange subsystem 2. The device has a simple structure, forms different working pipelines by selecting to open or close so as to realize different pipeline connection modes, is simple and convenient to operate, ensures that energy sources have various conversion and output modes, and improves the utilization rate of the energy sources.
Example 2:
according to fig. 2-3, the present embodiment provides an energy conversion method, which is based on the energy conversion apparatus according to the first embodiment, and includes the steps of:
s1, a first group of switches and a second group of switches are opened to communicate a first heat exchange system and a second heat exchange system, and a third group of switches are closed to disconnect a water source heat exchange subsystem and an air source heat exchange subsystem;
s2, outputting a working medium from the first heat exchange system or the second heat exchange system and circularly moving in a pipeline, enabling the power subsystem to act on the working medium to provide circulating power, enabling the working medium to circulate to the second heat exchange system or the first heat exchange system, enabling the second heat exchange system or the first heat exchange system to act on the working medium to realize energy conversion, enabling the flow control subsystem to control the flow of the working medium to reduce the pressure, and enabling the working medium to circulate back to the first heat exchange system or the second heat exchange system.
The specific process comprises the following steps:
and when heating is required indoors in winter, the first heat exchange systems are all operated as evaporators, and two heat exchangers in the first heat exchange systems are selected to be operated simultaneously. At this time, the connection state and connection relation of the devices in the pipeline are that the third group of switches are in a closed state, the first group of switches and the second group of switches are in an open state, the first switching valve 41 is selected to be communicated with the second switching valve 42 in the switching module, and the third switching valve 43 is communicated with the fourth switching valve 44. The principle of energy conversion and output is that low-temperature low-pressure gaseous working medium flows out from the first pipeline opening 13 of the water source heat exchange subsystem 1 and the third pipeline opening 21 of the air source heat exchange subsystem 2, enters the power subsystem 3 through the first conversion valve 41 and the second conversion valve 42, becomes high-temperature high-pressure gaseous working medium after being compressed by the compressor, and finally enters the second heat exchange system 5 through the seventh electric valve 7-7 and the fifth pipeline opening 51 of the second heat exchange system 5 to heat heating circulating water, so that energy conversion and utilization are completed. The working medium is in circulating motion, the high-temperature high-pressure liquid working medium is discharged from the sixth pipeline opening 52 of the second heat exchange system 5, throttled and depressurized by the flow control subsystem 6 and then becomes low-temperature low-pressure gas-liquid mixed working medium, the low-temperature low-pressure gas-liquid mixed working medium is respectively introduced into the water source heat exchange subsystem 1 and the air source heat exchange subsystem 2 through the fourth electric valve 7-4 and the first electric valve 7-1, and then becomes low-temperature low-pressure gas working medium after evaporation and heat absorption, the circulating motion is started again, the heat of a buried pipe heat exchanger or other water sources can be absorbed through the water source heat exchange subsystem 1, and the heat in the air can be absorbed through the air source heat exchange subsystem 2.
When heating is required indoors in winter, only the water source heat exchange subsystem 1 can be selected to be started, and at the moment, a fourth switch and a fourth switch in the third group of switches are closed; alternatively, only the air source heat exchange subsystem 2 may be activated, with the second and fourth switches of the first set of switches closed. The connection state and connection relation of the devices in other pipelines and the principle of energy conversion and output are consistent with those of the two heat exchangers in the first heat exchange system which are operated simultaneously, and the connection state and connection relation of the devices in other pipelines and the principle of energy conversion and output are not repeated here.
And when cooling is required in the summer, the first heat exchange systems are all operated as condensers, and two heat exchangers in the first heat exchange systems are selected to be operated simultaneously. At this time, the connection state and connection relation of the devices in the pipeline are that the third group of switches are in a closed state, the first group of switches and the second group of switches are in an open state, the first switching valve 41 is selected to be communicated with the fourth switching valve 44 in the switching module, and the third switching valve 43 is communicated with the second switching valve 42. The principle of energy conversion and output is that the low-temperature low-pressure gaseous working medium comes out from the fifth pipeline opening 51 of the second heat exchange system 5, enters the power subsystem 3 through the seventh electric valve 7-7, the first conversion valve 41 and the fourth conversion valve 44, is compressed by a compressor and becomes high-temperature high-pressure gaseous working medium, and then enters the water source heat exchange subsystem 1 and the air source heat exchange subsystem 2 through the second electric valve 7-2 and the third electric valve 7-3 respectively to condense and release heat, and can heat buried pipe circulating water or domestic hot water or other water source water through the water source heat exchange subsystem 1 to realize conversion and utilization of energy. The working medium is in circulating motion, the condensed high-temperature high-pressure liquid working medium is throttled and depressurized by a throttle expansion valve to be changed into a low-temperature low-pressure gas-liquid mixed working medium, and the gas-liquid mixed working medium enters the second heat exchange system 5 through a seventh electric valve 7-7 and an eighth electric valve 7-8 to be evaporated and absorbed, and is changed into a low-temperature low-pressure gas working medium to be continuously subjected to the next circulation.
When cooling is required indoors in summer, only the water source heat exchange subsystem 1 can be selected to be started, and at the moment, a fourth switch and a fourth switch in the third group of switches are closed; alternatively, only the air source heat exchange subsystem 2 may be activated, with the second and fourth switches of the first set of switches closed. The connection state and connection relation of the devices in other pipelines and the principle of energy conversion and output are consistent with those of the two heat exchangers in the first heat exchange system which are operated simultaneously, and the connection state and connection relation of the devices in other pipelines and the principle of energy conversion and output are not repeated here.
Example 3:
according to fig. 4-5, this embodiment provides an energy conversion method, which is different from the second embodiment in that:
in the step S1, a third group of switches are opened to communicate the water source heat exchange subsystem and the air source heat exchange subsystem, and the first group of switches are opened and the second group of switches are closed to disconnect the first heat exchange system and the second heat exchange system;
in step S2, the working medium is output from the water source heat exchange subsystem or the air source heat exchange subsystem and circularly moves in the pipeline, the power subsystem acts on the working medium to provide circulating power, the working medium circulates to the air source heat exchange subsystem or the water source heat exchange subsystem, the air source heat exchange subsystem or the water source heat exchange subsystem acts on the working medium to realize energy conversion, the flow control subsystem controls the flow of the working medium to reduce the pressure, and the working medium circulates back to the water source heat exchange subsystem or the air source heat exchange subsystem.
The specific process comprises the following steps:
and when in a transitional season, the third group of switches, the third switch and the fourth switch are in an open state, the second group of switches, the first switch and the second switch are in a closed state, and different conversion forms and output directions of energy sources are realized by selecting the connection of the first group of conversion valves and the second group of conversion valves, so that the working principle is consistent with that of the second embodiment, and the second embodiment is omitted.
Claims (10)
1. An energy conversion device, which is characterized in that,
the system comprises a first heat exchange system connected with an external energy source, a second heat exchange system arranged at a user side and a supply system for providing circulating power for the first heat exchange system and the second heat exchange system;
the system also comprises an adjusting system for adjusting the energy conversion form and the output direction;
the adjusting system comprises a conversion module for converting the pipeline connection relation and a switch module for controlling the pipeline connection state.
2. An energy conversion apparatus according to claim 1, wherein,
the switching module is provided with a first group of switching valves and a second group of switching valves connected with the first group of switching valves;
the first set of switching valves includes a first switching valve and a third switching valve;
the second set of switching valves includes a second switching valve and a fourth switching valve.
3. An energy conversion apparatus according to claim 1, wherein,
the first heat exchange system is a double-source system and comprises a water source heat exchange subsystem and an air source heat exchange subsystem;
the first heat exchange system is provided with an external connection module connected with an external energy source and an internal connection module.
4. An energy conversion apparatus according to claim 3, wherein,
the external connection module comprises a water source external connection module and an air source external connection module;
the water source external connection module is provided with an external water source inlet connected with an external water supply pipe and an external water source outlet connected with an external water return pipe, and is provided with an air source channel connected with an external air source;
the internal connection module comprises a water source internal connection module and an air source internal connection module.
5. An energy conversion apparatus according to claim 1, wherein,
the second heat exchange system is provided with a user side connection module connected with the user side and a pipeline connection module connected with the pipeline;
the user side connection module is provided with an indoor water source outlet connected with an indoor water supply pipe and an indoor water inlet connected with an indoor water return pipe.
6. An energy conversion apparatus according to claim 4 or 5, wherein,
the switch module comprises an external switch sub-module for controlling the pipeline connection state between the first heat exchange system and the second heat exchange system, and an internal switch sub-module for controlling the pipeline connection state between the water source heat exchange sub-system and the air source heat exchange sub-system.
7. An energy conversion apparatus according to claim 6, wherein,
the external switch submodule comprises a first group of switches connected with the internal connection module and a second group of switches connected with the pipeline connection module;
the internal switch sub-module includes a third set of switches for connecting the water source internal connection module and the air source internal connection module.
8. An energy conversion apparatus according to claim 1, wherein,
the supply system is connected with the first heat exchange system and the second heat exchange system;
the supply system comprises a power subsystem for providing power and a flow control subsystem for controlling the flow of working medium to reduce the pressure;
the power subsystem is provided with a compressor, and the flow control subsystem is provided with a throttle expansion valve.
9. An energy conversion method based on an energy conversion device according to any one of claims 1 to 8, characterized by comprising the steps of:
s1, a first group of switches and a second group of switches are opened to communicate a first heat exchange system and a second heat exchange system, and a third group of switches are closed to disconnect a water source heat exchange subsystem and an air source heat exchange subsystem;
s2, outputting a working medium from the first heat exchange system or the second heat exchange system and circularly moving in a pipeline, enabling the power subsystem to act on the working medium to provide circulating power, enabling the working medium to circulate to the second heat exchange system or the first heat exchange system, enabling the second heat exchange system or the first heat exchange system to act on the working medium to realize energy conversion, enabling the flow control subsystem to control the flow of the working medium to reduce the pressure, and enabling the working medium to circulate back to the first heat exchange system or the second heat exchange system.
10. An energy conversion method according to claim 9, wherein,
in the step S1, a third group of switches are opened to communicate the water source heat exchange subsystem and the air source heat exchange subsystem, and the first group of switches are opened and the second group of switches are closed to disconnect the first heat exchange system and the second heat exchange system;
in step S2, the working medium is output from the water source heat exchange subsystem or the air source heat exchange subsystem and circularly moves in the pipeline, the power subsystem acts on the working medium to provide circulating power, the working medium circulates to the air source heat exchange subsystem or the water source heat exchange subsystem, the air source heat exchange subsystem or the water source heat exchange subsystem acts on the working medium to realize energy conversion, the flow control subsystem controls the flow of the working medium to reduce the pressure, and the working medium circulates back to the water source heat exchange subsystem or the air source heat exchange subsystem.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310276806.2A CN116294274A (en) | 2023-03-21 | 2023-03-21 | Energy conversion equipment and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310276806.2A CN116294274A (en) | 2023-03-21 | 2023-03-21 | Energy conversion equipment and method |
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| CN116294274A true CN116294274A (en) | 2023-06-23 |
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