CN111306840A - Multidirectional thermodynamic cycle - Google Patents
Multidirectional thermodynamic cycle Download PDFInfo
- Publication number
- CN111306840A CN111306840A CN202010101201.6A CN202010101201A CN111306840A CN 111306840 A CN111306840 A CN 111306840A CN 202010101201 A CN202010101201 A CN 202010101201A CN 111306840 A CN111306840 A CN 111306840A
- Authority
- CN
- China
- Prior art keywords
- heat source
- temperature
- temperature heat
- low
- medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 claims abstract description 290
- 238000010521 absorption reaction Methods 0.000 claims abstract description 20
- 230000003247 decreasing effect Effects 0.000 claims description 8
- 238000011946 reduction process Methods 0.000 claims description 8
- 238000005057 refrigeration Methods 0.000 abstract description 29
- 230000002441 reversible effect Effects 0.000 description 55
- 230000002427 irreversible effect Effects 0.000 description 25
- 230000006837 decompression Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 10
- 239000000126 substance Substances 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
Classifications
-
- 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
Abstract
The invention provides a multidirectional thermodynamic cycle, and belongs to the technical field of thermodynamics, power, refrigeration and heat pumps. Eight processes of a working medium, namely a working medium heat absorption process 12 from a secondary low-temperature heat source, a pressure increasing process 23 from the secondary low temperature, a heat release process 34 to a low-temperature heat source, a pressure increasing process 45 from the low temperature, a heat release process 56 to a high-temperature heat source, a pressure reducing process 67 from the high temperature, a heat absorption process 78 from a medium-temperature heat source, a pressure reducing process 81 from the medium temperature are sequentially carried out among a high-temperature heat source, a medium-temperature heat source, a low-temperature heat source and a secondary low-temperature heat source to form a closed process 123456781, and a multidirectional thermodynamic cycle.
Description
The technical field is as follows:
the invention belongs to the technical field of thermodynamics, power, refrigeration and heat pumps.
Background art:
cold demand, heat demand and power demand, which are common in human life and production; to achieve the cold, heat and power requirements, one pays for the cost of the equipment. In order to reduce corresponding cost, people need simple and direct fundamental theoretical support; especially under the condition of multi-temperature difference utilization or multi-energy utilization or the condition of simultaneously meeting different energy supply requirements, the fundamental theoretical support can greatly reduce the manufacturing difficulty and the manufacturing cost of related devices. In a thermal science basic theory system, thermodynamic cycle is the core of the theoretical basis of a heat energy utilization device and an energy utilization system; the creation and development application of thermodynamic cycle will play a significant role in the leap of energy utilization, and will actively push social progress and productivity development.
The invention provides corresponding multidirectional thermodynamic cycle aiming at the condition that middle-temperature heat resources are utilized to simultaneously meet high-temperature heat requirements and refrigeration requirements, considering the consideration of power resource utilization or the satisfaction of external power requirements and following the principle of simply, actively and efficiently realizing temperature difference and energy difference utilization.
The invention content is as follows:
the invention mainly aims to provide a multidirectional thermodynamic cycle which mainly uses medium-temperature heat resources to simultaneously meet high-temperature heat requirements and refrigeration requirements, gives consideration to power resource utilization or meets external power requirements, and specifically comprises the following contents:
1. the multidirectional thermodynamic cycle is a closed process 123456781 consisting of eight processes, namely a working medium heat absorption process 12 from a secondary low-temperature heat source, a pressure increase process 23 from a secondary low temperature, a heat release process 34 to a low-temperature heat source, a pressure increase process 45 from a low temperature, a heat release process 56 to a high-temperature heat source, a pressure reduction process 67 from a high temperature, a heat absorption process 78 from a medium-temperature heat source, and a pressure reduction process 81 from a medium temperature, which are sequentially performed among a high-temperature heat source, a medium-temperature heat source, a low-temperature heat source, and a secondary low-temperature heat source.
2. The multidirectional thermodynamic cycle is a non-closed process 12345678 which works among a high-temperature heat source, a medium-temperature heat source, a low-temperature heat source and a sub-low-temperature heat source and consists of seven processes which are sequentially performed, namely a pressure increasing process 12 of a refrigerated medium from a sub-low temperature, a heat releasing process 23 of the refrigerated medium to the low-temperature heat source, a pressure increasing process 34 of the refrigerated medium from a low temperature, a heat releasing process 45 of the refrigerated medium to the high-temperature heat source, a pressure reducing process 56 of the refrigerated medium from a high temperature, a heat absorbing process 67 of the medium-temperature heat source.
3. The multidirectional thermodynamic cycle is a non-closed process 12345678 which works among a high-temperature heat source, a medium-temperature heat source, a low-temperature heat source and a sub-low-temperature heat source and is formed by seven processes, namely a pressure increasing process 12 of a low-temperature heat source medium from low temperature, a heat releasing process 23 to the high-temperature heat source, a pressure reducing process 34 from high temperature, a heat absorbing process 45 from the medium-temperature heat source, a pressure reducing process 56 from medium temperature, a heat absorbing process 67 from the sub-low-temperature heat source and a pressure increasing process 78 from sub-low temperature, which are sequentially carried out.
4. The multidirectional thermodynamic cycle is a non-closed process 1234567 which works among a high-temperature heat source, a medium-temperature heat source, a low-temperature heat source and a sub-low-temperature heat source and is formed by six processes, namely a pressure increasing process 12 of a low-temperature heat source medium from low temperature, a heat releasing process 23 to the high-temperature heat source, a pressure decreasing process 34 from high temperature, a heat absorbing process 45 from the medium-temperature heat source, a pressure decreasing process 56 from medium temperature and a heat absorbing process 67 from the sub-low-temperature heat source, which are sequentially carried out.
5. The multidirectional thermodynamic cycle is a non-closed process 12345678 which works among a high-temperature heat source, a medium-temperature heat source, a low-temperature heat source and a sub-low-temperature heat source and is composed of seven processes sequentially performed, namely a depressurization process 12 of a medium-temperature heat source medium from the medium temperature, a heat absorption process 23 of the sub-low-temperature heat source, a pressure boosting process 34 from the sub-low temperature, a heat release process 45 to the low-temperature heat source, a pressure boosting process 56 from the low temperature, a heat release process 67 to the high-temperature heat source and a depressurization process 78 from the high temperature.
6. The multidirectional thermodynamic cycle is a non-closed process 12345678 which works among a high-temperature heat source, a medium-temperature heat source, a low-temperature heat source and a sub-low-temperature heat source and is composed of seven processes sequentially performed, namely a pressure reduction process 12 of a heated medium from high temperature, a heat absorption process 23 of the medium-temperature heat source, a pressure reduction process 34 of the medium-temperature heat source, a heat absorption process 45 of the sub-low-temperature heat source, a pressure increase process 56 of the sub-low-temperature heat source, a heat release process 67 of the low-temperature heat source and a pressure increase process 78 of the low-temperature.
Description of the drawings:
fig. 1 is an exemplary schematic flow diagram of group 1 of a multi-directional thermodynamic cycle provided in accordance with the present invention.
Fig. 2 is an exemplary schematic flow diagram of group 2 of a multi-directional thermodynamic cycle provided in accordance with the present invention.
Fig. 3 is an exemplary schematic flow diagram of group 3 of the multi-directional thermodynamic cycle provided in accordance with the present invention.
Fig. 4 is an exemplary schematic flow diagram of group 4 of the multi-directional thermodynamic cycle provided in accordance with the present invention.
Fig. 5 is an exemplary schematic flow diagram of group 5 of the multi-directional thermodynamic cycle provided in accordance with the present invention.
For ease of understanding, the following description is given:
(1) high temperature heat source-the substance that gets high temperature thermal load, the highest temperature, can also be called the heated medium.
(2) Medium temperature heat source-a substance that provides a medium temperature heat load (driving heat load and warming heat load) at a temperature only lower than that of the high temperature heat source.
(3) Low temperature heat source-a substance that carries away low temperature heat load, the temperature is lower than medium temperature heat source, also called low temperature heat medium, such as ambient air; or a low temperature heat demand consumer.
(4) The secondary low-temperature heat source, the object to be refrigerated, emits a secondary low-temperature heat load (or called refrigeration load).
(5) When the heat source substance directly serves as a working medium to participate in the circulation flow, the heat source substance corresponds to a corresponding heat source.
(6) The temperatures corresponding to the high-temperature heat source, the medium-temperature heat source, the low-temperature heat source and the sub-low-temperature heat source are called high temperature, medium temperature, low temperature and sub-low temperature correspondingly.
The specific implementation mode is as follows:
the invention is described in detail below with reference to the drawings and examples; wherein each example operates between a high temperature heat source, a medium temperature heat source, a low temperature heat source, and a sub-low temperature heat source.
Examples of the multi-directional thermodynamic cycle flow in the T-s diagram of fig. 1 are respectively such:
example (1), the working medium is sequentially subjected to 8 processes, namely, a constant-pressure (constant-temperature) endothermic process 12, a reversible adiabatic pressure-increasing process 23, a constant-pressure (constant-temperature) exothermic process 34, a reversible adiabatic pressure-increasing process 45, a constant-pressure (constant-temperature) exothermic process 56, an irreversible adiabatic pressure-decreasing process 67, a constant-pressure (constant-temperature) endothermic process 78, and a reversible adiabatic pressure-decreasing process 81, to form a multidirectional thermodynamic cycle 123456781.
Example (2), the working medium is sequentially subjected to 8 processes, namely, a constant-pressure (constant-temperature) endothermic process 12, a reversible adiabatic pressure-increasing process 23, a constant-pressure exothermic process 34, a reversible adiabatic pressure-increasing process 45, a constant-pressure (constant-temperature) exothermic process 56, a reversible adiabatic pressure-decreasing process 67, a constant-pressure (constant-temperature) endothermic process 78, and a reversible adiabatic pressure-decreasing process 81, to form a multidirectional thermodynamic cycle 123456781.
Example (3), the working medium is sequentially subjected to 8 processes, namely, a constant-pressure endothermic process 12, a reversible adiabatic pressure-increasing process 23, a constant-pressure exothermic process 34, a reversible adiabatic pressure-increasing process 45, a constant-pressure exothermic process 56, a reversible adiabatic pressure-decreasing process 67, a constant-pressure endothermic process 78, and a reversible adiabatic pressure-decreasing process 81, to form a multidirectional thermodynamic cycle 123456781.
Example (4), the working medium is sequentially subjected to 8 processes, namely, a constant-pressure endothermic process 12, an irreversible adiabatic pressure-increasing process 23, a constant-pressure exothermic process 34, an irreversible adiabatic pressure-increasing process 45, a constant-pressure exothermic process 56, an irreversible adiabatic pressure-decreasing process 67, a constant-pressure endothermic process 78, and an irreversible adiabatic pressure-decreasing process 81, to form a multidirectional thermodynamic cycle 123456781.
In the above four examples, the working medium obtains the medium temperature heat load from the medium temperature heat source in the process of 78, the working medium obtains the refrigeration load from the secondary low temperature heat source in the process of 12, the working medium releases the high temperature heat load to the high temperature heat source in the process of 56, and the working medium releases the low temperature heat load to the low temperature cold source in the process of 34; when the circulation net work is equal to zero, the sum of the medium-temperature heat load and the refrigeration load is equal to the sum of the high-temperature heat load and the low-temperature heat load; when the circulating net work is more than zero, the circulating net work is output outwards, and the sum of the medium-temperature heat load and the refrigeration load is equal to the sum of the high-temperature heat load, the low-temperature heat load and the outwards output work; when the circulation net work is less than zero, the circulation net work is input externally, and the sum of the high-temperature heat load and the low-temperature heat load is equal to the sum of the external input work, the medium-temperature heat load and the refrigeration load.
Examples of the multi-directional thermodynamic cycle flow in the T-s diagram of fig. 2 are respectively such:
example (1), the refrigerant medium is subjected to a reversible adiabatic pressure rise process 12, a constant pressure (constant temperature) heat release process 23, a reversible adiabatic pressure rise process 34, a constant pressure (constant temperature) heat release process 45, an irreversible adiabatic pressure drop process 56, a constant pressure (constant temperature) heat absorption process 67, a reversible adiabatic pressure drop process 78, and 7 processes in total, to form a multidirectional thermodynamic cycle 12345678.
Example (2), the refrigerant medium is subjected to a reversible adiabatic pressure increasing process 12, a constant pressure heat releasing process 23, a reversible adiabatic pressure increasing process 34, a constant pressure (constant temperature) heat releasing process 45, a reversible adiabatic pressure decreasing process 56, a constant pressure (constant temperature) heat absorbing process 67 and a reversible adiabatic pressure decreasing process 78 in sequence, and 7 processes are formed to form a multidirectional thermodynamic cycle 12345678.
Example (3), the refrigerant medium is subjected to a reversible adiabatic pressure rise process 12, a constant pressure heat release process 23, a reversible adiabatic pressure rise process 34, a constant pressure heat release process 45, a reversible adiabatic pressure drop process 56, a constant pressure heat absorption process 67 and a reversible adiabatic pressure drop process 78 in sequence, which are 7 processes in total, to form a multidirectional thermodynamic cycle 12345678.
Example (4), the refrigerant medium is subjected to an irreversible adiabatic pressure increasing process 12, a constant pressure heat releasing process 23, an irreversible adiabatic pressure increasing process 34, a constant pressure heat releasing process 45, an irreversible adiabatic pressure reducing process 56, a constant pressure heat absorbing process 67, and an irreversible adiabatic pressure reducing process 78, which are 7 processes in sequence, to form a multidirectional thermodynamic cycle 12345678.
In the four examples, the medium to be refrigerated obtains the medium temperature heat load from the medium temperature heat source in the 67 processes, the medium to be refrigerated provides the refrigeration load by carrying out the non-closed thermodynamic cycle 12345678, the medium to be refrigerated releases the high temperature heat load to the high temperature heat source in the 45 processes, and the medium to be refrigerated releases the low temperature heat load to the low temperature cold source in the 23 processes; when the sum of the medium temperature thermal load and the refrigeration load is equal to the sum of the high temperature thermal load and the low temperature thermal load, the non-closed thermodynamic cycle 12345678 has no mechanical energy exchange with the outside; when the medium temperature heat load and the refrigeration load are more than or equal to the sum of the high temperature heat load and the low temperature heat load, the non-closed thermodynamic cycle 12345678 has mechanical energy output outwards; when the intermediate thermal load and the refrigeration load are less than the sum of the high temperature thermal load and the low temperature thermal load, the external inputs mechanical energy to the non-closed thermodynamic cycle 12345678.
The example of a multi-directional thermodynamic cycle flow in the T-s diagram of fig. 3 is such that:
in example (1), the low-temperature heat source medium sequentially performs a reversible adiabatic pressure rise process 12, a constant-pressure (constant-temperature) heat release process 23, an irreversible adiabatic pressure drop process 34, a constant-pressure (constant-temperature) heat absorption process 45, a reversible adiabatic pressure drop process 56, a constant-pressure (constant-temperature) heat absorption process 67, a reversible adiabatic pressure rise process 78, and 7 processes in total, so as to form a multidirectional thermodynamic cycle 12345678.
Example (2), the low-temperature heat source medium is sequentially subjected to a reversible adiabatic pressure rise process 12, a constant-pressure (constant-temperature) heat release process 23, a reversible adiabatic pressure drop process 34, a constant-pressure (constant-temperature) heat absorption process 45, a reversible adiabatic pressure drop process 56, a constant-pressure (constant-temperature) heat absorption process 67, a reversible adiabatic pressure rise process 78, and 7 processes in total, so that a multidirectional thermodynamic cycle 12345678 is formed.
Example (3), the low-temperature heat source medium is sequentially subjected to a reversible adiabatic pressure rise process 12, a constant-pressure heat release process 23, a reversible adiabatic pressure drop process 34, a constant-pressure heat absorption process 45, a reversible adiabatic pressure drop process 56, a constant-pressure heat absorption process 67, and a reversible adiabatic pressure rise process 78, which are 7 processes in total, to form a multidirectional thermodynamic cycle 12345678.
Example (4), the low-temperature heat source medium is sequentially subjected to 7 processes, namely an irreversible adiabatic pressure increasing process 12, a constant-pressure heat releasing process 23, an irreversible adiabatic pressure decreasing process 34, a constant-pressure heat absorbing process 45, an irreversible adiabatic pressure decreasing process 56, a constant-pressure heat absorbing process 67 and an irreversible adiabatic pressure increasing process 78, to form a multidirectional thermodynamic cycle 12345678.
In the above four examples, the low-temperature heat source medium obtains the medium-temperature heat load from the medium-temperature heat source in the 45-stage process, the low-temperature heat source medium obtains the refrigeration load from the secondary low-temperature heat source in the 67-stage process, the low-temperature heat source medium releases the high-temperature heat load to the high-temperature heat source in the 23-stage process, and the low-temperature heat source medium completes the non-closed thermodynamic cycle 12345678 to obtain the low-temperature heat load; when the sum of the medium temperature thermal load and the refrigeration load is equal to the sum of the high temperature thermal load and the low temperature thermal load, the non-closed thermodynamic cycle 12345678 has no mechanical energy exchange with the outside; when the medium temperature heat load and the refrigeration load are more than or equal to the sum of the high temperature heat load and the low temperature heat load, the non-closed thermodynamic cycle 12345678 has mechanical energy output outwards; when the intermediate thermal load and the refrigeration load are less than the sum of the high temperature thermal load and the low temperature thermal load, the external inputs mechanical energy to the non-closed thermodynamic cycle 12345678.
The example of a multi-directional thermodynamic cycle flow in the T-s diagram of fig. 4 is such that:
in the example (1), the medium-temperature heat source medium sequentially performs a reversible adiabatic decompression process 12, a constant-pressure (constant-temperature) endothermic process 23, a reversible adiabatic boosting process 34, a constant-pressure (constant-temperature) exothermic process 45, a reversible adiabatic boosting process 56, a constant-pressure (constant-temperature) exothermic process 67, an irreversible adiabatic decompression process 78, and 7 processes in total, so as to form a multidirectional thermodynamic cycle 12345678.
In example (2), the medium-temperature heat source medium sequentially performs 7 processes, namely a reversible adiabatic decompression process 12, a constant-pressure (constant-temperature) endothermic process 23, a reversible adiabatic boosting process 34, a constant-pressure exothermic process 45, a reversible adiabatic boosting process 56, a constant-pressure (constant-temperature) exothermic process 67 and a reversible adiabatic decompression process 78, to form a multidirectional thermodynamic cycle 12345678.
Example (3), the medium-temperature heat source medium sequentially performs 7 processes, namely a reversible adiabatic decompression process 12, a constant-pressure endothermic process 23, a reversible adiabatic boosting process 34, a constant-pressure exothermic process 45, a reversible adiabatic boosting process 56, a constant-pressure exothermic process 67 and a reversible adiabatic decompression process 78, to form a multidirectional thermodynamic cycle 12345678.
Example (4), the medium temperature heat source medium sequentially performs 7 processes, namely an irreversible adiabatic decompression process 12, a constant pressure endothermic process 23, an irreversible adiabatic boosting process 34, a constant pressure exothermic process 45, an irreversible adiabatic boosting process 56, a constant pressure exothermic process 67, and an irreversible adiabatic decompression process 78, to form a multidirectional thermodynamic cycle 12345678.
In the above four examples, the intermediate temperature heat source medium completes the non-closed thermodynamic cycle 12345678 to provide the intermediate temperature heat load, the intermediate temperature heat source medium performs 23 processes to obtain the refrigeration load from the secondary low temperature heat source, the intermediate temperature heat source medium performs 67 processes to release the high temperature heat load to the high temperature heat source, and the intermediate temperature heat source medium performs 45 processes to release the low temperature heat load to the low temperature heat source; when the sum of the medium temperature thermal load and the refrigeration load is equal to the sum of the high temperature thermal load and the low temperature thermal load, the non-closed thermodynamic cycle 12345678 has no mechanical energy exchange with the outside; when the medium temperature heat load and the refrigeration load are more than or equal to the sum of the high temperature heat load and the low temperature heat load, the non-closed thermodynamic cycle 12345678 has mechanical energy output outwards; when the intermediate thermal load and the refrigeration load are less than the sum of the high temperature thermal load and the low temperature thermal load, the external inputs mechanical energy to the non-closed thermodynamic cycle 12345678.
The example of a multi-directional thermodynamic cycle flow in the T-s diagram of fig. 5 is such:
example (1), the medium to be heated is sequentially subjected to an irreversible adiabatic decompression process 12, a constant-pressure (constant-temperature) endothermic process 23, a reversible adiabatic decompression process 34, a constant-pressure (constant-temperature) endothermic process 45, a reversible adiabatic boosting process 56, a constant-pressure (constant-temperature) exothermic process 67, a reversible adiabatic boosting process 78, and 7 processes in total, to form a multidirectional thermodynamic cycle 12345678.
Example (2), the heated medium is subjected to a reversible adiabatic decompression process 12, a constant-pressure (constant-temperature) endothermic process 23, a reversible adiabatic decompression process 34, a constant-pressure (constant-temperature) endothermic process 45, a reversible adiabatic boosting process 56, a constant-pressure exothermic process 67, and a reversible adiabatic boosting process 78 in sequence, which are 7 processes in total, to form a multidirectional thermodynamic cycle 12345678.
Example (3), the heated medium is subjected to 7 processes in sequence, namely a reversible adiabatic decompression process 12, a constant pressure endothermic process 23, a reversible adiabatic decompression process 34, a constant pressure endothermic process 45, a reversible adiabatic pressure rise process 56, a constant pressure exothermic process 67, and a reversible adiabatic pressure rise process 78, to form a multidirectional thermodynamic cycle 12345678.
Example (4), the heated medium is subjected to 7 processes in sequence, namely an irreversible adiabatic decompression process 12, a constant pressure endothermic process 23, an irreversible adiabatic decompression process 34, a constant pressure endothermic process 45, an irreversible adiabatic pressure increasing process 56, a constant pressure exothermic process 67, and an irreversible adiabatic pressure increasing process 78, to form a multidirectional thermodynamic cycle 12345678.
In the above four examples, the medium to be heated obtains the medium temperature heat load from the medium temperature heat source in the process of 23, the medium to be heated obtains the refrigeration load from the secondary low temperature heat source in the process of 45, the medium to be heated obtains the high temperature heat load by completing the non-closed thermodynamic cycle 12345678, and the medium to be heated releases the low temperature heat load to the low temperature heat source in the process of 67; when the sum of the medium temperature thermal load and the refrigeration load is equal to the sum of the high temperature thermal load and the low temperature thermal load, the non-closed thermodynamic cycle 12345678 has no mechanical energy exchange with the outside; when the medium temperature heat load and the refrigeration load are more than or equal to the sum of the high temperature heat load and the low temperature heat load, the non-closed thermodynamic cycle 12345678 has mechanical energy output outwards; when the intermediate thermal load and the refrigeration load are less than the sum of the high temperature thermal load and the low temperature thermal load, the external inputs mechanical energy to the non-closed thermodynamic cycle 12345678.
The effect that the technology of the invention can realize-the multidirectional thermodynamic cycle proposed by the invention has the following effects and advantages:
(1) the new construction utilizes the basic theory of heat energy (temperature difference).
(2) Through single circulation and a single working medium, the medium-temperature heat resources are utilized, and high-temperature heat supply and secondary low-temperature refrigeration are realized at the same time, or the high-temperature heat supply, the low-temperature heat supply and the secondary low-temperature refrigeration are realized at the same time.
(3) The method is simple, the flow is reasonable, the method is a common technology for realizing effective utilization of temperature difference, and the applicability is good.
(4) The medium-temperature heat driving realizes high-temperature heat supply and low-temperature refrigeration at the same time or realizes high-temperature heat supply, low-temperature heat supply and secondary low-temperature refrigeration at the same time, and the performance index is high.
(5) Supports the heat and power combined supply and provides a theoretical basis for constructing a simple and effective cold and heat and power combined supply device.
(6) Supports the combination of heat and power and provides a theoretical basis for constructing a simple and effective multi-energy effective utilization device.
(7) The working medium has wide application range, the working medium and the working parameters are flexibly matched, and the energy supply requirement can be adapted in a larger range.
(8) The thermodynamic cycle type for realizing temperature difference utilization and effective utilization of mechanical energy is expanded, and efficient utilization of heat energy and mechanical energy is facilitated.
Claims (6)
1. The multidirectional thermodynamic cycle is a closed process 123456781 consisting of eight processes, namely a working medium heat absorption process 12 from a secondary low-temperature heat source, a pressure increase process 23 from a secondary low temperature, a heat release process 34 to a low-temperature heat source, a pressure increase process 45 from a low temperature, a heat release process 56 to a high-temperature heat source, a pressure reduction process 67 from a high temperature, a heat absorption process 78 from a medium-temperature heat source, and a pressure reduction process 81 from a medium temperature, which are sequentially performed among a high-temperature heat source, a medium-temperature heat source, a low-temperature heat source, and a secondary low-temperature heat source.
2. The multidirectional thermodynamic cycle is a non-closed process 12345678 which works among a high-temperature heat source, a medium-temperature heat source, a low-temperature heat source and a sub-low-temperature heat source and consists of seven processes which are sequentially performed, namely a pressure increasing process 12 of a refrigerated medium from a sub-low temperature, a heat releasing process 23 of the refrigerated medium to the low-temperature heat source, a pressure increasing process 34 of the refrigerated medium from a low temperature, a heat releasing process 45 of the refrigerated medium to the high-temperature heat source, a pressure reducing process 56 of the refrigerated medium from a high temperature, a heat absorbing process 67 of the medium-temperature heat source.
3. The multidirectional thermodynamic cycle is a non-closed process 12345678 which works among a high-temperature heat source, a medium-temperature heat source, a low-temperature heat source and a sub-low-temperature heat source and is formed by seven processes, namely a pressure increasing process 12 of a low-temperature heat source medium from low temperature, a heat releasing process 23 to the high-temperature heat source, a pressure reducing process 34 from high temperature, a heat absorbing process 45 from the medium-temperature heat source, a pressure reducing process 56 from medium temperature, a heat absorbing process 67 from the sub-low-temperature heat source and a pressure increasing process 78 from sub-low temperature, which are sequentially carried out.
4. The multidirectional thermodynamic cycle is a non-closed process 1234567 which works among a high-temperature heat source, a medium-temperature heat source, a low-temperature heat source and a sub-low-temperature heat source and is formed by six processes, namely a pressure increasing process 12 of a low-temperature heat source medium from low temperature, a heat releasing process 23 to the high-temperature heat source, a pressure decreasing process 34 from high temperature, a heat absorbing process 45 from the medium-temperature heat source, a pressure decreasing process 56 from medium temperature and a heat absorbing process 67 from the sub-low-temperature heat source, which are sequentially carried out.
5. The multidirectional thermodynamic cycle is a non-closed process 12345678 which works among a high-temperature heat source, a medium-temperature heat source, a low-temperature heat source and a sub-low-temperature heat source and is composed of seven processes sequentially performed, namely a depressurization process 12 of a medium-temperature heat source medium from the medium temperature, a heat absorption process 23 of the sub-low-temperature heat source, a pressure boosting process 34 from the sub-low temperature, a heat release process 45 to the low-temperature heat source, a pressure boosting process 56 from the low temperature, a heat release process 67 to the high-temperature heat source and a depressurization process 78 from the high temperature.
6. The multidirectional thermodynamic cycle is a non-closed process 12345678 which works among a high-temperature heat source, a medium-temperature heat source, a low-temperature heat source and a sub-low-temperature heat source and is composed of seven processes sequentially performed, namely a pressure reduction process 12 of a heated medium from high temperature, a heat absorption process 23 of the medium-temperature heat source, a pressure reduction process 34 of the medium-temperature heat source, a heat absorption process 45 of the sub-low-temperature heat source, a pressure increase process 56 of the sub-low-temperature heat source, a heat release process 67 of the low-temperature heat source and a pressure increase process 78 of the low-temperature.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019101254031 | 2019-02-15 | ||
| CN201910125403 | 2019-02-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111306840A true CN111306840A (en) | 2020-06-19 |
Family
ID=71160091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010101201.6A Pending CN111306840A (en) | 2019-02-15 | 2020-02-08 | Multidirectional thermodynamic cycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111306840A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670448A (en) * | 2004-03-15 | 2005-09-21 | 三洋电机株式会社 | Refrigerating machine |
| CN101762112A (en) * | 2009-10-20 | 2010-06-30 | 李华玉 | Sectional evaporation-compression vapor compression heat pump |
| CN201811498U (en) * | 2010-09-29 | 2011-04-27 | 中原工学院 | Double heat source type multi-compression high temperature heat pump |
| CN103335452A (en) * | 2013-07-09 | 2013-10-02 | 烟台冰轮股份有限公司 | Refrigeration and heat recovery double-working-condition system with ammonia as refrigerant |
| CN203396153U (en) * | 2013-07-09 | 2014-01-15 | 烟台冰轮股份有限公司 | Refrigeration and heat recover dual-working-condition system using ammonia as refrigerant |
| CN105890216A (en) * | 2015-04-13 | 2016-08-24 | 李华玉 | Multi-directional heat circulation and third-kind heat driving compression heat pump |
| CN105953454A (en) * | 2015-04-13 | 2016-09-21 | 李华玉 | Bidirectional thermal cycle and first type of heat-driven compression heat pump |
-
2020
- 2020-02-08 CN CN202010101201.6A patent/CN111306840A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670448A (en) * | 2004-03-15 | 2005-09-21 | 三洋电机株式会社 | Refrigerating machine |
| CN101762112A (en) * | 2009-10-20 | 2010-06-30 | 李华玉 | Sectional evaporation-compression vapor compression heat pump |
| CN201811498U (en) * | 2010-09-29 | 2011-04-27 | 中原工学院 | Double heat source type multi-compression high temperature heat pump |
| CN103335452A (en) * | 2013-07-09 | 2013-10-02 | 烟台冰轮股份有限公司 | Refrigeration and heat recovery double-working-condition system with ammonia as refrigerant |
| CN203396153U (en) * | 2013-07-09 | 2014-01-15 | 烟台冰轮股份有限公司 | Refrigeration and heat recover dual-working-condition system using ammonia as refrigerant |
| CN105890216A (en) * | 2015-04-13 | 2016-08-24 | 李华玉 | Multi-directional heat circulation and third-kind heat driving compression heat pump |
| CN105953454A (en) * | 2015-04-13 | 2016-09-21 | 李华玉 | Bidirectional thermal cycle and first type of heat-driven compression heat pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105890216B (en) | Multidirectional thermodynamic cycle and third-class thermally-driven compression heat pump | |
| CN105805973B (en) | Multidirectional thermodynamic cycle and third-class thermally-driven compression heat pump | |
| CN110631274A (en) | Multidirectional thermodynamic cycle of the second kind | |
| Alam et al. | Optimization of a solar driven adsorption refrigeration system | |
| CN106225322B (en) | Third-class thermally-driven compression heat pump | |
| CN111306840A (en) | Multidirectional thermodynamic cycle | |
| CN111380251A (en) | Multidirectional thermodynamic cycle | |
| CN111380254A (en) | Multidirectional thermodynamic cycle | |
| CN111380253A (en) | Multidirectional thermodynamic cycle | |
| CN110631276A (en) | Multidirectional thermodynamic cycle of the first kind | |
| CN111380252A (en) | Multidirectional thermodynamic cycle | |
| CN111380255A (en) | Multidirectional thermodynamic cycle | |
| CN110631277A (en) | Multidirectional thermodynamic cycle of the second kind | |
| CN110631275A (en) | Multidirectional thermodynamic cycle of the third kind | |
| CN110631280A (en) | Multidirectional thermodynamic cycle of the second kind | |
| CN110631278A (en) | Multidirectional thermodynamic cycle of the third kind | |
| CN110631279A (en) | Multidirectional thermodynamic cycle of the first kind | |
| CN110631273A (en) | Multidirectional thermodynamic cycle of the first kind | |
| CN111503918A (en) | Third-class thermally-driven compression heat pump | |
| CN113465215A (en) | Phase-change type fourth-class thermally-driven compression heat pump | |
| US20220260285A1 (en) | Reversed single-working-medium vapor combined cycle | |
| CN111750560A (en) | Fourth-class thermally-driven compression heat pump | |
| CN111503916A (en) | Fourth-class thermally-driven compression heat pump | |
| CN113465214A (en) | Phase-change type fourth-class thermally-driven compression heat pump | |
| CN111503919A (en) | Third-class thermally-driven compression heat pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |