CN113932471A - Phase change type mechanical compression heat pump - Google Patents
Phase change type mechanical compression heat pump Download PDFInfo
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- CN113932471A CN113932471A CN202111085168.3A CN202111085168A CN113932471A CN 113932471 A CN113932471 A CN 113932471A CN 202111085168 A CN202111085168 A CN 202111085168A CN 113932471 A CN113932471 A CN 113932471A
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- 239000007921 spray Substances 0.000 claims abstract description 24
- 238000005057 refrigeration Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 21
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- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002427 irreversible effect Effects 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
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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
- F25B11/00—Compression machines, plants or systems, using turbines, e.g. gas turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/08—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using ejectors
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Abstract
The invention provides a phase-change type mechanical compression heat pump, and belongs to the technical field of refrigeration and heat pumps. The dual-energy compressor is provided with a circulating working medium channel which is communicated with the pressure reduction heat supply device, the pressure reduction heat supply device is also provided with a circulating working medium channel which is communicated with the evaporator through a spray pipe, and the evaporator is also provided with a circulating working medium channel which is communicated with the dual-energy compressor; the pressure reduction heat supply device is also communicated with the outside through a heated medium channel, and the evaporator is also communicated with the outside through a low-temperature heat medium channel to form phase change type mechanical compression heat.
Description
The technical field is as follows:
the invention belongs to the technical field of refrigeration and heat pumps.
Background art:
the conversion of mechanical energy into heat energy is an important way for realizing refrigeration and heat supply, wherein a phase-change mechanical compression heat pump based on reverse Rankine cycle is common equipment, and can bring benefits in various aspects such as energy conservation, environmental protection and economy. In the phase-change type mechanical compression heat pump, the advantage of absorbing low-temperature heat load by relying on the evaporation process is the advantage, but the larger problem is brought about by mainly relying on the condensation process for heat release, which causes irreversible loss of temperature difference which is difficult to eliminate when the heat load is provided for the temperature change requirement; in addition, the performance index and the manufacturing cost of the phase-change mechanical compression heat pump are directly influenced by the pressure difference in the condensate depressurization process and the utilization level of sensible heat of the condensate.
The invention provides the phase-change mechanical compression heat pump which can realize continuous small-temperature-difference heat supply, effectively reduce the temperature difference loss in the heat supply process, effectively utilize the pressure reduction potential and sensible heat of condensate and has the comprehensive advantages of simplicity, high efficiency and the like.
The invention content is as follows:
the invention mainly aims to provide a phase-change type mechanical compression heat pump, and the specific contents of the invention are set forth in the following items:
1. the phase change type mechanical compression heat pump mainly comprises a compressor, a turbine, a pressure reduction heat supply device and an evaporator; the compressor is provided with a circulating working medium channel which is communicated with the pressure reduction heat supply device, the pressure reduction heat supply device is also provided with a circulating working medium channel which is communicated with the evaporator through the turbine, and the evaporator is also provided with a circulating working medium channel which is communicated with the compressor; the pressure reduction heat supply device is also provided with a heated medium channel communicated with the outside, the evaporator is also provided with a low-temperature heat medium channel communicated with the outside, and the turbine is connected with the compressor and transmits power to form the phase-change mechanical compression heat pump.
2. The phase change type mechanical compression heat pump mainly comprises a dual-energy compressor, a turbine, a pressure reduction heat supply device and an evaporator; the dual-energy compressor is provided with a circulating working medium channel which is communicated with the pressure-reducing heat supply device, the pressure-reducing heat supply device is also provided with a circulating working medium channel which is communicated with the evaporator through the turbine, and the evaporator is also provided with a circulating working medium channel which is communicated with the dual-energy compressor; the pressure reduction heat supply device is also provided with a heated medium channel communicated with the outside, the evaporator is also provided with a low-temperature heat medium channel communicated with the outside, and the turbine is connected with the dual-energy compressor and transmits power to form the phase-change mechanical compression heat pump.
3. The phase change type mechanical compression heat pump mainly comprises a dual-energy compressor, a spray pipe, a pressure reduction heat supply device and an evaporator; the dual-energy compressor is provided with a circulating working medium channel which is communicated with the pressure reduction heat supply device, the pressure reduction heat supply device is also provided with a circulating working medium channel which is communicated with the evaporator through a spray pipe, and the evaporator is also provided with a circulating working medium channel which is communicated with the dual-energy compressor; the pressure reduction heat supply device is also communicated with the outside through a heated medium channel, and the evaporator is also communicated with the outside through a low-temperature heat medium channel to form a phase-change mechanical compression heat pump.
4. The phase change type mechanical compression heat pump mainly comprises a double-booster compressor, a turbine, a booster heat supply device and an evaporator; the double booster compressor is provided with a circulating working medium channel which is communicated with the booster heat supplier, the booster heat supplier is also provided with a circulating working medium channel which is communicated with the evaporator through the turbine, and the evaporator is also provided with a circulating working medium channel which is communicated with the double booster compressor; the evaporator is also provided with a low-temperature thermal medium channel communicated with the outside, the boosting heat supply device is also provided with a heated medium channel communicated with the outside, and the turbine is connected with the double-boosting compressor and transmits power to form the phase-change mechanical compression heat pump.
5. The phase change type mechanical compression heat pump mainly comprises a double booster compressor, a spray pipe, a booster heat supply device and an evaporator; the double booster compressor is provided with a circulating working medium channel which is communicated with the booster heat supplier, the booster heat supplier is also provided with a circulating working medium channel which is communicated with the evaporator through a spray pipe, and the evaporator is also provided with a circulating working medium channel which is communicated with the double booster compressor; the evaporator is also provided with a low-temperature thermal medium channel communicated with the outside, and the boosting heat supply device is also provided with a heated medium channel communicated with the outside to form a phase-change mechanical compression heat pump.
6. The phase change type mechanical compression heat pump mainly comprises a compressor, a turbine, a pressure reduction heat supply device, an evaporator and a heat regenerator; the compressor is provided with a circulating working medium channel which is communicated with the pressure reduction heat supply device, the pressure reduction heat supply device is also provided with a circulating working medium channel heat regenerator and a turbine which are communicated with the evaporator, and the evaporator is also provided with a circulating working medium channel which is communicated with the compressor through the heat regenerator; the pressure reduction heat supply device is also provided with a heated medium channel communicated with the outside, the evaporator is also provided with a low-temperature heat medium channel communicated with the outside, and the turbine is connected with the compressor and transmits power to form the phase-change mechanical compression heat pump.
7. The phase change type mechanical compression heat pump mainly comprises a dual-energy compressor, a turbine, a pressure reduction heat supply device, an evaporator and a heat regenerator; the dual-energy compressor is provided with a circulating working medium channel which is communicated with a heat supplier, the heat supplier is also provided with a circulating working medium channel which is communicated with an evaporator through a heat regenerator and a turbine, and the evaporator is also provided with a circulating working medium channel which is communicated with the dual-energy compressor through the heat regenerator; the pressure reduction heat supply device is also provided with a heated medium channel communicated with the outside, the evaporator is also provided with a low-temperature heat medium channel communicated with the outside, and the turbine is connected with the dual-energy compressor and transmits power to form the phase-change mechanical compression heat pump.
8. The phase change type mechanical compression heat pump mainly comprises a dual-energy compressor, a spray pipe, a pressure reduction heat supply device, an evaporator and a heat regenerator; the dual-energy compressor is provided with a circulating working medium channel which is communicated with the pressure-reducing heat supply device, the pressure-reducing heat supply device is also provided with a circulating working medium channel which is communicated with the evaporator through the heat regenerator and the spray pipe, and the evaporator is also provided with a circulating working medium channel which is communicated with the dual-energy compressor through the heat regenerator; the pressure reduction heat supply device is also communicated with the outside through a heated medium channel, and the evaporator is also communicated with the outside through a low-temperature heat medium channel to form a phase-change mechanical compression heat pump.
9. The phase change type mechanical compression heat pump mainly comprises a double-booster compressor, a turbine, a booster heat supply device, an evaporator and a heat regenerator; the double booster compressor is provided with a circulating working medium channel which is communicated with a booster heat supplier, the booster heat supplier is also provided with a circulating working medium channel which is communicated with the evaporator through a heat regenerator and a turbine, and the evaporator is also provided with a circulating working medium channel which is communicated with the double booster compressor through the heat regenerator; the evaporator is also provided with a low-temperature thermal medium channel communicated with the outside, the boosting heat supply device is also provided with a heated medium channel communicated with the outside, and the turbine is connected with the double-boosting compressor and transmits power to form the phase-change mechanical compression heat pump.
10. The phase change type mechanical compression heat pump mainly comprises a double booster compressor, a spray pipe, a booster heat supply device, an evaporator and a heat regenerator; the double booster compressor is provided with a circulating working medium channel which is communicated with a booster heat supplier, the booster heat supplier is also provided with a circulating working medium channel which is communicated with the evaporator through a heat regenerator and a spray pipe, and the evaporator is also provided with a circulating working medium channel which is communicated with the double booster compressor through the heat regenerator; the evaporator is also provided with a low-temperature thermal medium channel communicated with the outside, and the boosting heat supply device is also provided with a heated medium channel communicated with the outside to form a phase-change mechanical compression heat pump.
11. The phase change type mechanical compression heat pump mainly comprises a dual-energy compressor, a throttle valve, a pressure reduction heat supply device and an evaporator; the dual-energy compressor is provided with a circulating working medium channel which is communicated with the pressure-reducing heat supply device, the pressure-reducing heat supply device is also provided with a circulating working medium channel which is communicated with the evaporator through a throttle valve, and the evaporator is also provided with a circulating working medium channel which is communicated with the dual-energy compressor; the pressure reduction heat supply device is also communicated with the outside through a heated medium channel, and the evaporator is also communicated with the outside through a low-temperature heat medium channel to form a phase-change mechanical compression heat pump.
12. The phase change type mechanical compression heat pump mainly comprises a double-booster compressor, a throttle valve, a boosting heat supply device and an evaporator; the double booster compressor is provided with a circulating working medium channel which is communicated with the booster heat supplier, the booster heat supplier is also provided with a circulating working medium channel which is communicated with the evaporator through the throttle valve, and the evaporator is also provided with a circulating working medium channel which is communicated with the double booster compressor; the evaporator is also provided with a low-temperature thermal medium channel communicated with the outside, and the boosting heat supply device is also provided with a heated medium channel communicated with the outside to form a phase-change mechanical compression heat pump.
Description of the drawings:
fig. 1 is a diagram of a 1 st principal thermodynamic system of a phase-change type mechanical compression heat pump according to the present invention.
Fig. 2 is a 2 nd principle thermodynamic system diagram of a phase-change type mechanical compression heat pump according to the present invention.
Fig. 3 is a 3 rd principle thermodynamic system diagram of a phase change type mechanical compression heat pump according to the present invention.
Fig. 4 is a diagram of a 4 th principle thermodynamic system of a phase change type mechanical compression heat pump according to the present invention.
Fig. 5 is a diagram of a 5 th principle thermodynamic system of a phase change type mechanical compression heat pump according to the present invention.
Fig. 6 is a diagram of a 6 th principle thermodynamic system of a phase change type mechanical compression heat pump according to the present invention.
Fig. 7 is a diagram of a 7 th principle thermodynamic system of a phase change type mechanical compression heat pump according to the present invention.
Fig. 8 is a diagram of an 8 th principle thermodynamic system of a phase change type mechanical compression heat pump according to the present invention.
In the figure, 1-compressor, 2-turbine, 3-decompression heat supplier, 4-evaporator, 5-double-energy compressor, 6-spray pipe, 7-double-booster compressor (boosting speed-raising compressor), 8-boosting heat supplier, 9-heat regenerator and 10-throttle valve.
For ease of understanding, the following description is given here:
(1) the pressure reduction heat supply device is a variable cross-section heat exchanger, pressure reduction and energy conversion (pressure reduction and speed increase) are realized by changing a flow cross section of a working medium so as to reduce irreversible loss of temperature difference between the working medium and a heated medium, continuous small-temperature-difference heat release can be realized and maintained between the working medium and the heated medium, and the pressure reduction heat release process is completed; generally, when the initial velocity of the working medium is subsonic and the velocity of the working medium is not higher than the sonic velocity at the end of the heat exchange process, the flow section is a tapered variable section; when the initial velocity of the working medium is supersonic velocity and the velocity of the working medium is higher than the initial velocity after the heat exchange process is finished, the flow section is a gradually expanding variable section; when the initial velocity of the working medium is subsonic and the velocity of the working medium is higher than the sonic velocity at the end of the heat exchange process, the flow section is a tapered-gradually-expanded variable section.
(2) The boosting heat supplier is a variable cross-section heat exchanger, the pressure rise and the energy conversion (speed reduction and pressurization) are realized by the change of the flow cross section of the working medium, so that the irreversible loss of the temperature difference between the working medium and the heated medium is reduced, the continuous small-temperature-difference heat release can be realized and maintained between the working medium and the heated medium, and the boosting heat release process is completed; generally, when the initial velocity of the working medium is subsonic, the flow section is a divergent section; when the initial velocity of the working medium is supersonic velocity, the flow section is a tapered variable section.
(3) Dual energy compressor-compressor that uses both external mechanical energy and kinetic energy of the working medium itself (the kinetic energy is generally converted from its internal thermal energy in other processes) to increase the pressure of the working medium; taking fig. 3 as an example, when the working medium flows through the nozzle 6 and converts the internal heat energy into kinetic energy, the flow rate of the working medium is increased, and the working medium carries the kinetic energy to enter the compression process, the speed and the pressure of the working medium are reduced and increased, so that the kinetic energy is converted into the internal heat energy (the pressure and the temperature of the working medium are increased), the recovery of the pressure difference energy and the internal heat energy in the front-stage pressure reduction process is realized, and the input of external mechanical energy in the pressure increase process of the working medium is reduced.
(4) The double-booster compressor (booster speed-raising compressor) boosts and raises the speed of a working medium by means of external mechanical energy, namely the external mechanical energy provided for the working medium achieves two purposes: one part of the mechanical energy is converted into heat energy inside the working medium (reflected on the pressure and temperature rise), and the other part of the mechanical energy increases the kinetic energy of the working medium, which is often used for the deceleration and acceleration of the subsequent link (the conversion of macroscopic kinetic energy into internal heat energy is realized by flowing through a diffuser pipe, for example).
The specific implementation mode is as follows:
it is to be noted that, in the description of the structure and the flow, the repetition is not necessary; obvious flow is not described. The invention is described in detail below with reference to the figures and examples.
The phase-change type mechanical compression heat pump shown in fig. 1 is realized by:
(1) structurally, the heat pump unit consists of compressor, turbine, pressure reducing heat supplier and evaporator; the compressor 1 is provided with a circulating working medium channel which is communicated with the pressure-reducing heat supply device 3, the pressure-reducing heat supply device 3 is also provided with a circulating working medium channel which is communicated with the evaporator 4 through the turbine 2, and the evaporator 4 is also provided with a circulating working medium channel which is communicated with the compressor 1; the decompression heat supplier 3 is also communicated with the outside through a heated medium channel, the evaporator 4 is also communicated with the outside through a low-temperature heat medium channel, and the turbine 2 is connected with the compressor 1 and transmits power.
(2) In the process, the circulating working medium discharged by the compressor 1 flows through the pressure-reducing heat-supplying device 3 to reduce pressure, release heat and condense, flows through the turbine 2 to reduce the speed, reduce the pressure and apply work, flows through the evaporator 4 to absorb heat and evaporate, and then enters the compressor 1 to increase the pressure and raise the temperature; the heated medium obtains high-temperature heat load through the pressure reduction heat supply device 3, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 4, and the exterior and the turbine 2 jointly provide power for the compressor 1 to form the phase-change type mechanical compression heat pump.
The phase-change type mechanical compression heat pump shown in fig. 2 is realized by:
(1) structurally, the system consists of a dual-energy compressor, a turbine, a pressure-reducing heat supply device and an evaporator; the dual-energy compressor 5 is provided with a circulating working medium channel which is communicated with the pressure-reducing heat supply device 3, the pressure-reducing heat supply device 3 is also provided with a circulating working medium channel which is communicated with the evaporator 4 through the turbine 2, and the evaporator 4 is also provided with a circulating working medium channel which is communicated with the dual-energy compressor 5; the pressure reduction heater 3 is also communicated with the outside through a heated medium channel, the evaporator 4 is also communicated with the outside through a low-temperature heat medium channel, and the turbine 2 is connected with the dual-energy compressor 5 and transmits power.
(2) In the process, the circulating working medium discharged by the dual-energy compressor 5 flows through the pressure-reducing heat-supplying device 3 to reduce pressure, release heat and condense, flows through the turbine 2 to reduce pressure, do work or reduce speed, reduce pressure and do work, flows through the evaporator 4 to absorb heat, evaporates, and then enters the dual-energy compressor 5 to increase pressure, raise temperature and reduce speed; the heated medium obtains high-temperature heat load through the pressure reduction heat supply device 3, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 4, and the outside and the turbine 2 jointly provide power for the dual-energy compressor 5 to form the phase-change mechanical compression heat pump.
The phase-change type mechanical compression heat pump shown in fig. 3 is realized by:
(1) structurally, the device mainly comprises a dual-energy compressor, a spray pipe, a pressure reduction heat supply device and an evaporator; the dual-energy compressor 5 is provided with a circulating working medium channel which is communicated with the pressure-reducing heat supply device 3, the pressure-reducing heat supply device 3 is also provided with a circulating working medium channel which is communicated with the evaporator 4 through a spray pipe 6, and the evaporator 4 is also provided with a circulating working medium channel which is communicated with the dual-energy compressor 5; the pressure reduction heat supply device 3 is also communicated with the outside through a heated medium channel, and the evaporator 4 is also communicated with the outside through a low-temperature heat medium channel.
(2) In the process, the circulating working medium discharged by the dual-energy compressor 5 is subjected to pressure reduction, heat release and condensation through the pressure reduction heat supply device 3, is subjected to pressure reduction and speed increase through the spray pipe 6, is subjected to heat absorption and evaporation through the evaporator 4, and then enters the dual-energy compressor 5 to be subjected to pressure increase, temperature increase and speed reduction; the heated medium obtains high-temperature heat load through the pressure reduction heat supply device 3, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 4, and power is provided for the dual-energy compressor 5 from the outside to form the phase-change type mechanical compression heat pump.
The phase-change type mechanical compression heat pump shown in fig. 4 is realized by:
(1) structurally, the system mainly comprises a double-booster compressor, a turbine, a booster heat supply device and an evaporator; the double booster compressor 7 is provided with a circulating working medium channel which is communicated with the booster heat supplier 8, the booster heat supplier 8 is also provided with a circulating working medium channel which is communicated with the evaporator 4 through the turbine 2, and the evaporator 4 is also provided with a circulating working medium channel which is communicated with the double booster compressor 7; the evaporator 4 is also communicated with the outside through a low-temperature heat medium channel, the booster heater 8 is also communicated with the outside through a heated medium channel, and the turbine 2 is connected with the double booster compressor 7 and transmits power.
(2) In the process, the circulating working medium discharged by the double booster compressor 7 is boosted by the booster heat supply device 8, released and condensed, reduced by the turbine 2, done work, absorbed and evaporated by the evaporator 4, and then enters the double booster compressor 7 for boosting and accelerating; the heated medium obtains high-temperature heat load through the pressure boosting heat supply device 8, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 4, and the outside and the turbine 2 jointly provide power for the double-pressure compressor 7 to form the phase-change mechanical compression heat pump.
The phase-change type mechanical compression heat pump shown in fig. 5 is realized by:
(1) structurally, the device mainly comprises a double-booster compressor, a spray pipe, a booster heat supply device and an evaporator; the double booster compressor 7 is provided with a circulating working medium channel which is communicated with the booster heat supplier 8, the booster heat supplier 8 is also provided with a circulating working medium channel which is communicated with the evaporator 4 through the spray pipe 6, and the evaporator 4 is also provided with a circulating working medium channel which is communicated with the double booster compressor 7; the evaporator 4 is also communicated with the outside through a low-temperature heat medium channel, and the boosting heater 8 is also communicated with the outside through a heated medium channel.
(2) In the process, the circulating working medium discharged by the double booster compressor 7 is boosted by the booster heat supply device 8, released, condensed, reduced and accelerated by the spray pipe 6, absorbed and evaporated by the evaporator 4, and then enters the double booster compressor 7 for boosting and accelerating; the heated medium obtains high-temperature heat load through the boost heat supply device 8, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 4, and power is provided for the double-boost compressor 7 from the outside to form the phase-change mechanical compression heat pump.
The phase-change type mechanical compression heat pump shown in fig. 6 is realized by:
(1) structurally, the heat recovery system mainly comprises a compressor, a turbine, a pressure reduction heat supply device, an evaporator and a heat regenerator; the compressor 1 is provided with a circulating working medium channel which is communicated with the pressure-reducing heat supply device 3, the pressure-reducing heat supply device 3 is also provided with a circulating working medium channel heat regenerator 9, the turbine 2 is communicated with the evaporator 4, and the evaporator 4 is also provided with a circulating working medium channel which is communicated with the compressor 1 through the heat regenerator 9; the decompression heat supplier 3 is also communicated with the outside through a heated medium channel, the evaporator 4 is also communicated with the outside through a low-temperature heat medium channel, and the turbine 2 is connected with the compressor 1 and transmits power.
(2) In the process, the circulating working medium discharged by the compressor 1 flows through the pressure-reducing heat-supplying device 3 to reduce pressure, release heat and condense, flows through the heat-returning device 9 to release heat and reduce temperature, flows through the turbine 2 to reduce speed, reduce pressure and do work, flows through the evaporator 4 to absorb heat and evaporate, flows through the heat-returning device 9 to absorb heat and raise temperature, and then enters the compressor 1 to raise pressure and raise temperature; the heated medium obtains high-temperature heat load through the pressure reduction heat supply device 3, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 4, and the exterior and the turbine 2 jointly provide power for the compressor 1 to form the phase-change type mechanical compression heat pump.
The phase-change type mechanical compression heat pump shown in fig. 7 is realized by:
(1) structurally, the system consists of a dual-energy compressor, a throttle valve, a pressure-reducing heat supply device and an evaporator; the dual-energy compressor 5 is provided with a circulating working medium channel which is communicated with the pressure-reducing heat supply device 3, the pressure-reducing heat supply device 3 is also provided with a circulating working medium channel which is communicated with the evaporator 4 through the throttle valve 10, and the evaporator 4 is also provided with a circulating working medium channel which is communicated with the dual-energy compressor 5; the pressure reduction heat supply device 3 is also communicated with the outside through a heated medium channel, and the evaporator 4 is also communicated with the outside through a low-temperature heat medium channel.
(2) In the process, the circulating working medium discharged by the dual-energy compressor 5 flows through the pressure-reducing heat-supplying device 3 to reduce pressure, release heat and condense, flows through the throttle valve 10 to reduce pressure, flows through the evaporator 4 to absorb heat and evaporate, and then enters the dual-energy compressor 5 to increase pressure, raise temperature and reduce speed; the heated medium obtains high-temperature heat load through the pressure reduction heat supply device 3, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 4, and power is provided for the dual-energy compressor 5 from the outside to form the phase-change type mechanical compression heat pump.
The phase-change type mechanical compression heat pump shown in fig. 8 is realized by:
(1) structurally, the system mainly comprises a double-booster compressor, a throttle valve, a booster heat supply device and an evaporator; the double booster compressor 7 is provided with a circulating working medium channel which is communicated with the booster heat supplier 8, the booster heat supplier 8 is also provided with a circulating working medium channel which is communicated with the evaporator 4 through a throttle valve 10, and the evaporator 4 is also provided with a circulating working medium channel which is communicated with the double booster compressor 7; the evaporator 4 is also communicated with the outside through a low-temperature heat medium channel, and the boosting heater 8 is also communicated with the outside through a heated medium channel.
(2) In the process, the circulating working medium discharged by the double booster compressor 7 is boosted by the booster heat supply device 8, released, condensed, throttled and reduced in pressure by the throttle valve 10, absorbed and evaporated by the evaporator 4, and then enters the double booster compressor 7 for boosting; the heated medium obtains high-temperature heat load through the boost heat supply device 8, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 4, and power is provided for the double-boost compressor 7 from the outside to form the phase-change mechanical compression heat pump.
The effect that the technology of the invention can realize-the phase change type mechanical compression heat pump provided by the invention has the following effects and advantages:
(1) continuous pressure-variable heat supply, and controllable heat transfer temperature difference in the heat supply process.
(2) The continuous small-temperature-difference heat supply can be realized, the temperature difference loss is flexibly and effectively reduced, and the performance index of the device is improved.
(3) The sensible heat of the condensate is effectively utilized, the adverse effect of the sensible heat of the condensate on the acquisition of low-temperature heat load is eliminated, and the performance index of the device is effectively improved.
(4) The pressure difference in the condensate depressurization process is fully utilized, and the performance index of the device is effectively improved.
(5) The working parameter range is effectively expanded, and high-efficiency refrigeration/heat supply and high-efficiency high-temperature heat supply are realized.
(6) The technical means is simple, and the manufacturing cost of the device is effectively reduced.
(7) The performance is improved, the cost is reduced, and the application range of the phase-change mechanical compression heat pump is expanded.
Claims (12)
1. The phase change type mechanical compression heat pump mainly comprises a compressor, a turbine, a pressure reduction heat supply device and an evaporator; the compressor (1) is provided with a circulating working medium channel which is communicated with the pressure reduction heat supply device (3), the pressure reduction heat supply device (3) is also provided with a circulating working medium channel which is communicated with the evaporator (4) through the turbine (2), and the evaporator (4) is also provided with a circulating working medium channel which is communicated with the compressor (1); the pressure reduction heat supply device (3) is also provided with a heated medium channel communicated with the outside, the evaporator (4) is also provided with a low-temperature heat medium channel communicated with the outside, and the turbine (2) is connected with the compressor (1) and transmits power to form the phase-change mechanical compression heat pump.
2. The phase change type mechanical compression heat pump mainly comprises a dual-energy compressor, a turbine, a pressure reduction heat supply device and an evaporator; the dual-energy compressor (5) is provided with a circulating working medium channel which is communicated with the pressure-reducing heat supply device (3), the pressure-reducing heat supply device (3) is also provided with a circulating working medium channel which is communicated with the evaporator (4) through the turbine (2), and the evaporator (4) is also provided with a circulating working medium channel which is communicated with the dual-energy compressor (5); the pressure reduction heat supply device (3) is also provided with a heated medium channel communicated with the outside, the evaporator (4) is also provided with a low-temperature heat medium channel communicated with the outside, and the turbine (2) is connected with the dual-energy compressor (5) and transmits power to form the phase-change mechanical compression heat pump.
3. The phase change type mechanical compression heat pump mainly comprises a dual-energy compressor, a spray pipe, a pressure reduction heat supply device and an evaporator; the dual-energy compressor (5) is provided with a circulating working medium channel which is communicated with the pressure-reducing heat supply device (3), the pressure-reducing heat supply device (3) is also provided with a circulating working medium channel which is communicated with the evaporator (4) through a spray pipe (6), and the evaporator (4) is also provided with a circulating working medium channel which is communicated with the dual-energy compressor (5); the pressure reduction heat supply device (3) is also provided with a heated medium channel communicated with the outside, and the evaporator (4) is also provided with a low-temperature heat medium channel communicated with the outside to form a phase-change type mechanical compression heat pump.
4. The phase change type mechanical compression heat pump mainly comprises a double-booster compressor, a turbine, a booster heat supply device and an evaporator; the double-booster compressor (7) is provided with a circulating working medium channel which is communicated with the booster heat supplier (8), the booster heat supplier (8) is also provided with a circulating working medium channel which is communicated with the evaporator (4) through the turbine (2), and the evaporator (4) is also provided with a circulating working medium channel which is communicated with the double-booster compressor (7); the evaporator (4) is also provided with a low-temperature heat medium channel communicated with the outside, the boosting heat supply device (8) is also provided with a heated medium channel communicated with the outside, and the turbine (2) is connected with the double-boosting compressor (7) and transmits power to form the phase-change mechanical compression heat pump.
5. The phase change type mechanical compression heat pump mainly comprises a double booster compressor, a spray pipe, a booster heat supply device and an evaporator; the double booster compressor (7) is provided with a circulating working medium channel which is communicated with the booster heat supplier (8), the booster heat supplier (8) is also provided with a circulating working medium channel which is communicated with the evaporator (4) through the spray pipe (6), and the evaporator (4) is also provided with a circulating working medium channel which is communicated with the double booster compressor (7); the evaporator (4) is also provided with a low-temperature heat medium channel communicated with the outside, and the boosting heat supplier (8) is also provided with a heated medium channel communicated with the outside to form a phase-change mechanical compression heat pump.
6. The phase change type mechanical compression heat pump mainly comprises a compressor, a turbine, a pressure reduction heat supply device, an evaporator and a heat regenerator; the compressor (1) is provided with a circulating working medium channel which is communicated with the pressure-reducing heat supply device (3), the pressure-reducing heat supply device (3) is also provided with a circulating working medium channel heat regenerator (9), the turbine (2) is communicated with the evaporator (4), and the evaporator (4) is also provided with a circulating working medium channel which is communicated with the compressor (1) through the heat regenerator (9); the pressure reduction heat supply device (3) is also provided with a heated medium channel communicated with the outside, the evaporator (4) is also provided with a low-temperature heat medium channel communicated with the outside, and the turbine (2) is connected with the compressor (1) and transmits power to form the phase-change mechanical compression heat pump.
7. The phase change type mechanical compression heat pump mainly comprises a dual-energy compressor, a turbine, a pressure reduction heat supply device, an evaporator and a heat regenerator; the dual-energy compressor (5) is provided with a circulating working medium channel communicated with the heat supplier (3), the heat supplier (3) is also provided with a circulating working medium channel communicated with the evaporator (4) through the heat regenerator (9) and the turbine (2), and the evaporator (4) is also provided with a circulating working medium channel communicated with the dual-energy compressor (5) through the heat regenerator (9); the pressure reduction heat supply device (3) is also provided with a heated medium channel communicated with the outside, the evaporator (4) is also provided with a low-temperature heat medium channel communicated with the outside, and the turbine (2) is connected with the dual-energy compressor (5) and transmits power to form the phase-change mechanical compression heat pump.
8. The phase change type mechanical compression heat pump mainly comprises a dual-energy compressor, a spray pipe, a pressure reduction heat supply device, an evaporator and a heat regenerator; the dual-energy compressor (5) is provided with a circulating working medium channel which is communicated with the pressure-reducing heat supply device (3), the pressure-reducing heat supply device (3) is also provided with a circulating working medium channel which is communicated with the evaporator (4) through the heat regenerator (9) and the spray pipe (6), and the evaporator (4) is also provided with a circulating working medium channel which is communicated with the dual-energy compressor (5) through the heat regenerator (9); the pressure reduction heat supply device (3) is also provided with a heated medium channel communicated with the outside, and the evaporator (4) is also provided with a low-temperature heat medium channel communicated with the outside to form a phase-change type mechanical compression heat pump.
9. The phase change type mechanical compression heat pump mainly comprises a double-booster compressor, a turbine, a booster heat supply device, an evaporator and a heat regenerator; the double booster compressor (7) is provided with a circulating working medium channel which is communicated with the booster heat supplier (8), the booster heat supplier (8) is also provided with a circulating working medium channel which is communicated with the evaporator (4) through the heat regenerator (9) and the turbine (2), and the evaporator (4) is also provided with a circulating working medium channel which is communicated with the double booster compressor (7) through the heat regenerator (9); the evaporator (4) is also provided with a low-temperature heat medium channel communicated with the outside, the boosting heat supply device (8) is also provided with a heated medium channel communicated with the outside, and the turbine (2) is connected with the double-boosting compressor (7) and transmits power to form the phase-change mechanical compression heat pump.
10. The phase change type mechanical compression heat pump mainly comprises a double booster compressor, a spray pipe, a booster heat supply device, an evaporator and a heat regenerator; the double booster compressor (7) is provided with a circulating working medium channel which is communicated with the booster heat supplier (8), the booster heat supplier (8) is also provided with a circulating working medium channel which is communicated with the evaporator (4) through the heat regenerator (9) and the spray pipe (6), and the evaporator (4) is also provided with a circulating working medium channel which is communicated with the double booster compressor (7) through the heat regenerator (9); the evaporator (4) is also provided with a low-temperature heat medium channel communicated with the outside, and the boosting heat supplier (8) is also provided with a heated medium channel communicated with the outside to form a phase-change mechanical compression heat pump.
11. The phase change type mechanical compression heat pump mainly comprises a dual-energy compressor, a throttle valve, a pressure reduction heat supply device and an evaporator; the dual-energy compressor (5) is provided with a circulating working medium channel which is communicated with the pressure-reducing heat supply device (3), the pressure-reducing heat supply device (3) is also provided with a circulating working medium channel which is communicated with the evaporator (4) through a throttle valve (10), and the evaporator (4) is also provided with a circulating working medium channel which is communicated with the dual-energy compressor (5); the pressure reduction heat supply device (3) is also provided with a heated medium channel communicated with the outside, and the evaporator (4) is also provided with a low-temperature heat medium channel communicated with the outside to form a phase-change type mechanical compression heat pump.
12. The phase change type mechanical compression heat pump mainly comprises a double-booster compressor, a throttle valve, a boosting heat supply device and an evaporator; the double booster compressor (7) is provided with a circulating working medium channel which is communicated with the booster heat supplier (8), the booster heat supplier (8) is also provided with a circulating working medium channel which is communicated with the evaporator (4) through a throttle valve (10), and the evaporator (4) is also provided with a circulating working medium channel which is communicated with the double booster compressor (7); the evaporator (4) is also provided with a low-temperature heat medium channel communicated with the outside, and the boosting heat supplier (8) is also provided with a heated medium channel communicated with the outside to form a phase-change mechanical compression heat pump.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004028525A (en) * | 2002-06-28 | 2004-01-29 | Zexel Valeo Climate Control Corp | Accumulator and refrigeration cycle using the same |
| CN101057115A (en) * | 2004-07-09 | 2007-10-17 | 谷俊杰 | Refrigeration system |
| CN110953750A (en) * | 2018-11-12 | 2020-04-03 | 李华玉 | High-efficiency steam compression type heat pump |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004028525A (en) * | 2002-06-28 | 2004-01-29 | Zexel Valeo Climate Control Corp | Accumulator and refrigeration cycle using the same |
| CN101057115A (en) * | 2004-07-09 | 2007-10-17 | 谷俊杰 | Refrigeration system |
| CN110953750A (en) * | 2018-11-12 | 2020-04-03 | 李华玉 | High-efficiency steam compression type heat pump |
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